Visual Inspection of the Pneumatic System Hoses, Tubes and Ducts

TASK 36-11-49-200-041-A
Visual Inspection of the Pneumatic System Hoses, Tubes and Ducts

WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 1M(3 FT)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 36-11-49-000-001-A	Removal of the Mid Stage Tee Duct
TASK 36-11-49-000-002-A	Removal of the High Pressure Tee Duct
TASK 36-11-49-000-003-A	Removal of the Upper High Pressure Duct
TASK 36-11-49-000-004-A	Removal of the Lower High Pressure Duct
TASK 36-11-49-000-005-A	Removal of the Fifth Stage ELbow Duct
TASK 36-11-49-000-006-A	Removal of the Pneumatic System Tubes and Hoses
TASK 36-11-49-000-026-A	Removal of the Sense Line between the Bleed Pressure-Regulator Valve (PRV) and the Pylon Interface
TASK 36-11-49-000-040-A	Removal of the Pylon Interface Duct
TASK 36-11-49-000-042-A	Removal of the Pylon Interface Duct
TASK 36-11-49-000-043-A	Removal of the Mid Stage Tee Duct
TASK 36-11-49-000-044-A	Removal of the High Pressure Tee Duct
TASK 36-11-49-000-045-A	Removal of the Lower High Pressure Duct
TASK 36-11-49-000-046-A	Removal of the Upper High Pressure Duct
TASK 36-11-49-000-047-A	Removal of the Pneumatic System Tubes and Hoses
TASK 36-11-49-000-048-A	Removal of the Fifth Stage Elbow Duct
TASK 36-11-49-200-041-A	Visual Inspection of the Pneumatic System Hoses, Tubes and Ducts
TASK 36-11-49-400-001-A	Installation of the Mid Stage Tee Duct
TASK 36-11-49-400-002-A	Installation of the High-Pressure Tee Duct
TASK 36-11-49-400-003-A	Installation of the Upper High-Pressure Duct
TASK 36-11-49-400-004-A	Installation of the Lower High-Pressure Duct
TASK 36-11-49-400-005-A	Installation of the Fifth-Stage Elbow Duct
TASK 36-11-49-400-006-A	Installation of the Pneumatic System Tubes and Hoses
TASK 36-11-49-400-026-A	Installation of the Sense Line between the Bleed Pressure-Regulator Valve (PRV) and the Pylon Interface
TASK 36-11-49-400-040-A	Installation of the Pylon Interface Duct
TASK 36-11-49-400-042-A	Installation of the Pylon Interface Duct
TASK 36-11-49-400-043-A	Installation of the Mid Stage Tee Duct
TASK 36-11-49-400-044-A	Installation of the High-Pressure Tee Duct
TASK 36-11-49-400-045-A	Installation of the Lower High-Pressure Duct
TASK 36-11-49-400-046-A	Installation of the Upper High-Pressure Duct
TASK 36-11-49-400-047-A	Installation of the Pneumatic System Tubes and Hoses
TASK 36-11-49-400-048-A	Installation of the Fifth-Stage Elbow Duct
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 78-30-00-081-041-A	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-A	Opening of the Thrust Reverser Doors
TASK 78-36-00-010-040-B	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A	Closing of the Thrust Reverser Doors
TASK 78-36-00-410-040-B	Closing of the Thrust Reverser Doors
TASK 80-11-10-210-002-A	Starter Inspection for a probably FOD (Foreign Object Damage)
TASK 80-11-10-210-003-A	Starter Inspection for a Probably FOD (Foreign Object Damage)
Pneumatic System Flexible Duct Joint Assembly
Mid Stage Tee and Elbow Duct Assemblies
Upper High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL
Center High Pressure Manifold Duct Assembly
Lower High Pressure Manifold Duct Assembly
Pneumatic System Hose and Tube Assemblies
Upper High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 36-11-49-941-091-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the ENG panel 115VU:

put a WARNING NOTICE(S) to tell persons not to start the engine 1(2).

(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the ENG section of the maintenance panel 50VU:

make sure that the ON legend of the ENG/FADEC GND PWR 1(2) pushbutton switch is off.
put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 36-11-49-010-122-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 1M(3 FT) in position below the engine.

Subtask 36-11-49-040-094-A ** ON A/C NOT FOR ALL

C. Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).

Subtask 36-11-49-010-123-A ** ON A/C NOT FOR ALL

D. Open the thrust reverser doors (Ref. AMM TASK 78-36-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-49-865-129-A ** ON A/C NOT FOR ALL

E. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22

4. Procedure
Subtask 36-11-49-210-062-A ** ON A/C NOT FOR ALL

A. Do a Visual Inspection of the Pneumatic System Ducts, Hoses and Tubes

Pneumatic System Flexible Duct Joint Assembly ** ON A/C NOT FOR ALL

Mid Stage Tee and Elbow Duct Assemblies ** ON A/C NOT FOR ALL

Upper High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL

Center High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL

Lower High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL

Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL

INSPECT/CHECK	MAXIMUM SERVICEABLE LIMITS	REMARKS
1.Examine the Pneumatic System Flexible Duct Joint Assembly (Pylon Interface Duct), look for: Pneumatic System Flexible Duct Joint Assembly ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-040) and (Ref. AMM TASK 36-11-49-400-040).
B.Wrinkles in bends	Maximum depth must be less than 5 percent of the duct diameter.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-040) and (Ref. AMM TASK 36-11-49-400-040).
C.Dents	Maximum depth must be less than 20 percent of the tube outside diameter. Maximum radius of the dent is not less than 2 times the duct wall thickness. Maximum of 4 dents per each one foot (305 mm) of duct. Minimum distance of 1.0 inch (25.4 mm) between dents. No limit to dents allowed except in bends, no dents are allowed in bends.	If the dents are less than the allowable limits, send duct in shop for evaluation. If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-040) and (Ref. AMM TASK 36-11-49-400-040).
D.Flat areas	Maximum length must be less than 3 times the outside diameter of the duct. Contour change must be less than 20 percent of the outside diameter of the duct.	If the flat areas are less than the allowable limits, send duct in shop for evaluation. If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-040) and (Ref. AMM TASK 36-11-49-400-040).
E.Nicks, Scratches, Chafing in Straight Section	Maximum depth must be less than 10 percent of the wall thickness of the duct. There is no limit to the number of nicks, scratches or chafing allowed in the straight section of the duct.	If the damage is less than the allowable limits: . Remove the pylon interface duct (Ref. AMM TASK 36-11-49-000-040). . Send duct in shop for evaluation. . Install the pylon interface duct (Ref. AMM TASK 36-11-49-400-040). If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-040) and (Ref. AMM TASK 36-11-49-400-040).
F.Nicks, Scratches, Chafing in Bends	Maximum depth must be less than 10 percent of the wall thickness of the duct.	If the damage is less than the allowable limits: . Remove the pylon interface duct (Ref. AMM TASK 36-11-49-000-040). . Send duct in shop for evaluation. . Install the pylon interface duct (Ref. AMM TASK 36-11-49-400-040). If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-040) and (Ref. AMM TASK 36-11-49-400-040).
G.Splits, Cracks, Kinks	Maximum length must be less than the duct outside diameter.	If the damage is less than the duct OD, send duct in shop for evaluation.
	Maximum length same as or more than the duct outside diameter.	If the damage is the same as or more than the duct OD, send duct in shop for evaluation.
H.Internal splits, cracks of flexible joints (bellows)	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-040) and (Ref. AMM TASK 36-11-49-400-040). Inspect the pneumatic system for FOD (foreign object damage) (Ref. AMM TASK 36-11-49-200-041). Inspect the starter motor for FOD (foreign object damage) (Ref. AMM TASK 80-11-10-210-002).
2.Examine the Pneumatic System Mid Stage Tee Assembly, look for: Mid Stage Tee and Elbow Duct Assemblies ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-400-001).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-400-001).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-400-001).
D.Dents	Maximum depth of 0.3 inch (7.62 mm) or Maximum depth cannot be more than 10 percent of the duct outside diameter. Minimum width to depth ratio to be 5:1. Dent has to be free from cracks, abrasion and sudden contour changes. Radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305mm) of the duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-400-001).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-400-001).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-400-001).
3.Examine the Pneumatic System Mid Stage Elbow Assembly, look for: Mid Stage Tee and Elbow Duct Assemblies ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-005) and (Ref. AMM TASK 36-11-49-400-005).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-005) and (Ref. AMM TASK 36-11-49-400-005).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-005) and (Ref. AMM TASK 36-11-49-400-005).
D.Dents	Maximum depth cannot be more than 10 percent of the duct outside diameter. Maximum radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305 mm) of duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-005) and (Ref. AMM TASK 36-11-49-400-005).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-005) and (Ref. AMM TASK 36-11-49-400-005).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-005) and (Ref. AMM TASK 36-11-49-400-005).
4.Examine the Pneumatic System Upper High Pressure Manifold Duct Assembly, look for: Upper High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-003) and (Ref. AMM TASK 36-11-49-400-003).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-003) and (Ref. AMM TASK 36-11-49-400-003).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-003) and (Ref. AMM TASK 36-11-49-400-003).
D.Dents	Maximum depth cannot be more than 10 percent of the duct outside diameter. Maximum radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305 mm) of duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-003) and (Ref. AMM TASK 36-11-49-400-003).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-003) and (Ref. AMM TASK 36-11-49-400-003).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-003) and (Ref. AMM TASK 36-11-49-400-003).
G.Worn Bushing Holes	Maximum diameter of the bushing hole is 0.26 in. (6.6040 mm)	If the bushing hole diameter exceeds the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-003) and (Ref. AMM TASK 36-11-49-400-003).
H.Loose Support Link	None Permitted	Replace the support link (Ref. AMM TASK 36-11-49-000-003) and (Ref. AMM TASK 36-11-49-400-003).
5.Examine the Pneumatic System Center High Pressure Manifold Duct Assembly, look for: Center High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-002) and (Ref. AMM TASK 36-11-49-400-002).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-002) and (Ref. AMM TASK 36-11-49-400-002).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-002) and (Ref. AMM TASK 36-11-49-400-002).
D.Dents	Maximum depth cannot be more than 10 percent of the duct outside diameter. Maximum radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305 mm) of duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-002) and (Ref. AMM TASK 36-11-49-400-002).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-002) and (Ref. AMM TASK 36-11-49-400-002).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-002) and (Ref. AMM TASK 36-11-49-400-002).
6.Examine the Pneumatic System Lower High Pressure Duct Assembly, look for: Lower High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-004) and (Ref. AMM TASK 36-11-49-400-004).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-004) and (Ref. AMM TASK 36-11-49-400-004).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-004) and (Ref. AMM TASK 36-11-49-400-004).
D.Dents	Maximum depth cannot be more than 10 percent of the duct outside diameter. Maximum radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305 mm) of duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-004) and (Ref. AMM TASK 36-11-49-400-004).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-004) and (Ref. AMM TASK 36-11-49-400-004).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-004) and (Ref. AMM TASK 36-11-49-400-004).
7.Examine the Pressure Regulator Valve to Interface Hose Assembly for the flexible part of the sense line, look for: Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL
A.Broken Wire Braids	Maximum of 3 broken wires per plait. No more than 6 broken wires in an assembly. No more than 6 broken wires in each one foot (305 mm) of hose.	If the damage is more than the allowable limits, replace the hose (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
B.Cracks	None permitted	If cracks are found, replace the hose (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
C.Crimps	None permitted	Replace the hose assembly (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
D.Internal blockage	None permitted	If blockage is found, remove the blockage or replace the hose (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
E.Leakage	None permitted	Replace the hose (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
8.Examine the Flexible Hose Assemblies, look for: Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL
A.Broken Wire Braids	Maximum of 3 broken wires per plait. No more than 6 broken wires in an assembly. No more than 6 broken wires in each one foot (305 mm) of hose.	If the damage is more than the allowable limits, replace the hose (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
B.Cracks	None permitted	If cracks are found, replace the hose (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
C.Crimps	None permitted	Replace the hose assembly (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
D.Internal blockage	None permitted	If blockage is found, remove the blockage or replace the hose (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
E.Leakage	None permitted	Replace the hose (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
9.Examine the fittings on the two ends of the hose, look for:
A.Thread damage	Damage is permitted if the threads that are good are not reduced by more than one thread.	If the damage is more than the allowable limits, replace the hose (Ref. AMM TASK 36-11-49-000-040) and (Ref. AMM TASK 36-11-49-400-040).
B.Damaged flats	Damage is permitted if the end fittings can keep the correct torque value.	If the end fittings cannot keep the correct torque, replace the hose (Ref. AMM TASK 36-11-49-000-001) and (Ref. AMM TASK 36-11-49-400-001).
C.Safety wire hole damaged or worn	Damage is permitted if the metal around the hole is not cracked or torn. One undrilled corner must remain.	Blend out damage. If necessary drill a hole in the undrilled corner. The new hole must be the same diameter and distance from the end of the nut as the old hole.
10.Examine the High Pressure Bleed-Valve to Pressure Regulator Tube-Assembly for the rigid part of the sense line, look for: Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL
A.Wrinkles in bends	Maximum depth must be less than 5 percent of the tube diameter.	If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
B.Dents	Maximum depth must be less than 20 percent of the tube outside diameter. Maximum radius of the dent is not less than 2 times the tube wall thickness. Maximum of 4 dents per each one foot (305 mm) of tube. Minimum distance of 1.0 inch (25.4 mm) between dents. No limit to dents allowed except in bends, no dents are allowed in bends.	If the dents are less than the allowable limits, send tube in shop for evaluation. If the dents are more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
C.Flat areas	Maximum length must be less than 3 times the outside diameter of the tube. Contour change must be less than 20 percent of the outside diameter of the tube.	If the flat areas are less than the allowable limits, send tube in shop for evaluation. If the flat areas are more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
D.Nicks, Scratches, Chafing in straight section	Maximum depth must be less than 10 percent of the wall thickness of the tube. There is no limit to the number of nicks, scratches or chafing allowed in the straight section of the tube.	If the damage is less than the allowable limits, send tube in shop for evaluation. If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
E.Nicks, Scratches, Chafing in bends	Maximum depth must be less than 10 percent of the wall thickness of the tube.	If the damage is less than the allowable limits, send tube in shop for evaluation. If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
F.Splits, Cracks, Kinks	Maximum length must be less than the tube outside diameter.	If the damage is less than the tube OD, send tube in shop for evaluation.
	Maximum length same as or more than the tube outside diameter.	If the damage is the same as or more than the tube OD, send tube in shop for evaluation.
11.Examine the Tee Assembly to Hose Tube Assembly, look for: Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL
A.Wrinkles in bends	Maximum depth must be less than 5 percent of the tube diameter.	If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
B.Dents	Maximum depth must be less than 20 percent of the tube outside diameter. Maximum radius of the dent is not less than 2 times the tube wall thickness. Maximum of 4 dents per each one foot (305 mm) of tube. Minimum distance of 1.0 inch (25.4 mm) between dents. No limit to dents allowed except in bends, no dents are allowed in bends.	If the dents are less than the allowable limits, send tube in shop for evaluation. If the dents are more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
C.Flat areas	Maximum length must be less than 3 times the outside diameter of the tube. Contour change must be less than 20 percent of the outside diameter of the tube.	If the flat areas are less than the allowable limits, send tube in shop for evaluation. If the flat areas are more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
D.Nicks, Scratches, Chafing in straight section	Maximum depth must be less than 10 percent of the wall thickness of the tube. There is no limit to the number of nicks, scratches or chafing allowed in the straight section of the tube.	If the damage is less than the allowable limits, send tube in shop for evaluation. If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
E.Nicks, Scratches, Chafing in bends	Maximum depth must be less than 10 percent of the wall thickness of the tube.	If the damage is less than the allowable limits, send tube in shop for evaluation. If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-006) and (Ref. AMM TASK 36-11-49-400-006).
F.Splits, Cracks, Kinks	Maximum length must be less than the tube outside diameter.	If the damage is less than the tube OD, send tube in shop for evaluation.
	Maximum length same as or more than the tube outside diameter.	If the damage is the same as or more than the tube OD, send tube in shop for evaluation.

Subtask 36-11-49-210-062-B ** ON A/C NOT FOR ALL

A. Do a Visual Inspection of the Pneumatic System Ducts, Hoses and Tubes

Pneumatic System Flexible Duct Joint Assembly ** ON A/C NOT FOR ALL

Mid Stage Tee and Elbow Duct Assemblies ** ON A/C NOT FOR ALL

Upper High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL

Center High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL

Lower High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL

Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL

INSPECT/CHECK	MAXIMUM SERVICEABLE LIMITS	REMARKS
1.Examine the Pneumatic System Flexible Duct Joint Assembly (Pylon Interface Duct), look for: Pneumatic System Flexible Duct Joint Assembly ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-400-042).
B.Wrinkles in bends	Maximum depth must be less than 5 percent of the duct diameter.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-400-042).
C.Dents	Maximum depth must be less than 20 percent of the tube outside diameter. Maximum radius of the dent is not less than 2 times the duct wall thickness. Maximum of 4 dents per each one foot (305 mm) of duct. Minimum distance of 1.0 inch (25.4 mm) between dents. No limit to dents allowed except in bends, no dents are allowed in bends.	If the dents are less than the allowable limits, send duct in shop for evaluation. If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-400-042).
D.Flat areas	Maximum length must be less than 3 times the outside diameter of the duct. Contour change must be less than 20 percent of the outside diameter of the duct.	If the flat areas are less than the allowable limits, send duct in shop for evaluation. If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-400-042).
E.Nicks, Scratches, Chafing in Straight Section	Maximum depth must be less than 10 percent of the wall thickness of the duct. There is no limit to the number of nicks, scratches or chafing allowed in the straight section of the duct.	If the damage is less than the allowable limits: . Remove the pylon interface duct (Ref. AMM TASK 36-11-49-000-042). . Send duct in shop for evaluation. . Install the pylon interface duct (Ref. AMM TASK 36-11-49-400-042). If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-400-042).
F.Nicks, Scratches, Chafing in Bends	Maximum depth must be less than 10 percent of the wall thickness of the duct.	If the damage is less than the allowable limits: . Remove the pylon interface duct (Ref. AMM TASK 36-11-49-000-042). . Send duct in shop for evaluation. . Install the pylon interface duct (Ref. AMM TASK 36-11-49-400-042). If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-400-042).
G.Splits, Cracks, Kinks	Maximum length must be less than the duct outside diameter.	If the damage is less than the duct OD, send duct in shop for evaluation.
	Maximum length same as or more than the duct outside diameter.	If the damage is the same as or more than the duct OD, send duct in shop for evaluation.
H.Internal splits, cracks of flexible joints (bellows)	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-400-042). Inspect the pneumatic system for FOD (foreign object damage) (Ref. AMM TASK 36-11-49-200-041). Inspect the starter motor for FOD (foreign object damage) (Ref. AMM TASK 80-11-10-210-003).
2.Examine the Pneumatic System Mid Stage Tee Assembly, look for: Mid Stage Tee and Elbow Duct Assemblies ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-043) and (Ref. AMM TASK 36-11-49-400-043).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-043) and (Ref. AMM TASK 36-11-49-400-043).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-043) and (Ref. AMM TASK 36-11-49-400-043).
D.Dents	Maximum depth of 0.3 inch (7.62 mm) or Maximum depth cannot be more than 10 percent of the duct outside diameter. Minimum width to depth ratio to be 5:1. Dent has to be free from cracks, abrasion and sudden contour changes. Radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305mm) of the duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-043) and (Ref. AMM TASK 36-11-49-400-043).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-043) and (Ref. AMM TASK 36-11-49-400-043).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-043) and (Ref. AMM TASK 36-11-49-400-043).
3.Examine the Pneumatic System Mid Stage Elbow Assembly, look for: Mid Stage Tee and Elbow Duct Assemblies ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-048) and (Ref. AMM TASK 36-11-49-400-048).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-048) and (Ref. AMM TASK 36-11-49-400-048).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-048) and (Ref. AMM TASK 36-11-49-400-048).
D.Dents	Maximum depth cannot be more than 10 percent of the duct outside diameter. Maximum radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305 mm) of duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-048) and (Ref. AMM TASK 36-11-49-400-048).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-048) and (Ref. AMM TASK 36-11-49-400-048).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-048) and (Ref. AMM TASK 36-11-49-400-048).
4.Examine the Pneumatic System Upper High Pressure Manifold Duct Assembly, look for: Upper High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-046) and (Ref. AMM TASK 36-11-49-400-046).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-046) and (Ref. AMM TASK 36-11-49-400-046).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-046) and (Ref. AMM TASK 36-11-49-400-046).
D.Dents	Maximum depth cannot be more than 10 percent of the duct outside diameter. Maximum radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305 mm) of duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-046) and (Ref. AMM TASK 36-11-49-400-046).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-046) and (Ref. AMM TASK 36-11-49-400-046).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-046) and (Ref. AMM TASK 36-11-49-400-046).
G.Worn Bushing Holes	Maximum diameter of the bushing hole is 0.26 in. (6.6040 mm)	If the bushing hole diameter exceeds the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-046) and (Ref. AMM TASK 36-11-49-400-046).
H.Loose Support Link	None permitted	Replace the support link (Ref. AMM TASK 36-11-49-000-046) and (Ref. AMM TASK 36-11-49-400-046).
5.Examine the Pneumatic System Center High Pressure Manifold Duct Assembly, look for: Center High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-044) and (Ref. AMM TASK 36-11-49-400-044).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-044) and (Ref. AMM TASK 36-11-49-400-044).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-044) and (Ref. AMM TASK 36-11-49-400-044).
D.Dents	Maximum depth cannot be more than 10 percent of the duct outside diameter. Maximum radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305 mm) of duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-044) and (Ref. AMM TASK 36-11-49-400-044).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-044) and (Ref. AMM TASK 36-11-49-400-044).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-044) and (Ref. AMM TASK 36-11-49-400-044).
6.Examine the Pneumatic System Lower High Pressure Duct Assembly, look for: Lower High Pressure Manifold Duct Assembly ** ON A/C NOT FOR ALL
A.Damage	None permitted within 0.50 in. (12.69 mm) of links, flex joints, couplings, and flanges.	Replace the duct (Ref. AMM TASK 36-11-49-000-045) and (Ref. AMM TASK 36-11-49-400-045).
B.Cracks, Splits or Kinks	None permitted	Replace the duct (Ref. AMM TASK 36-11-49-000-045) and (Ref. AMM TASK 36-11-49-400-045).
C.Wrinkles in bends	Maximum depth cannot be more than 3 percent of the duct diameter or 0.060 inch (1.52 mm) which ever is smaller.	If wrinkles are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-045) and (Ref. AMM TASK 36-11-49-400-045).
D.Dents	Maximum depth cannot be more than 10 percent of the duct outside diameter. Maximum radius is not less than 2 times the wall thickness. Maximum of 2 dents for each one foot (305 mm) of duct length.	If the dents are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-045) and (Ref. AMM TASK 36-11-49-400-045).
E.Flat areas	Maximum flat area cannot be more than 2 times the duct outside diameter. The contour change cannot be more than 10 percent of the duct outside diameter.	If the flat areas are more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-045) and (Ref. AMM TASK 36-11-49-400-045).
F.Nicks, Scratches, Chafing	Maximum depth cannot be more than 10 percent of the wall thickness.	If the damage is more than the allowable limits, replace the duct (Ref. AMM TASK 36-11-49-000-045) and (Ref. AMM TASK 36-11-49-400-045).
7.Examine the Pressure Regulator Valve to Interface Hose Assembly for the flexible part of the sense line, look for: Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL
A.Broken Wire Braids	Maximum of 3 broken wires per plait. No more than 6 broken wires in an assembly. No more than 6 broken wires in each one foot (305 mm) of hose.	If the damage is more than the allowable limits, replace the hose (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
B.Cracks	None permitted	If cracks are found, replace the hose (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
C.Crimps	None permitted	Replace the hose assembly (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
D.Internal blockage	None permitted	If blockage is found, remove the blockage or replace the hose (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
E.Leakage	None permitted	Replace the hose (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
8.Examine the Flexible Hose Assemblies, look for: Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL
A.Broken Wire Braids	Maximum of 3 broken wires per plait. No more than 6 broken wires in an assembly. No more than 6 broken wires in each one foot (305 mm) of hose.	If the damage is more than the allowable limits, replace the hose (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
B.Cracks	None permitted	If cracks are found, replace the hose (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
C.Crimps	None permitted	Replace the hose assembly (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
D.Internal blockage	None permitted	If blockage is found, remove the blockage or replace the hose (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
E.Leakage	None permitted	Replace the hose (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
9.Examine the fittings on the two ends of the hose, look for:
A.Thread damage	Damage is permitted if the threads that are good are not reduced by more than one thread.	If the damage is more than the allowable limits, replace the hose (Ref. AMM TASK 36-11-49-000-042) and (Ref. AMM TASK 36-11-49-400-042).
B.Damaged flats	Damage is permitted if the end fittings can keep the correct torque value.	If the end fittings cannot keep the correct torque, replace the hose (Ref. AMM TASK 36-11-49-000-043) and (Ref. AMM TASK 36-11-49-400-043).
C.Safety wire hole damaged or worn	Damage is permitted if the metal around the hole is not cracked or torn. One undrilled corner must remain.	Blend out damage. If necessary drill a hole in the undrilled corner. The new hole must be the same diameter and distance from the end of the nut as the old hole.
10.Examine the High Pressure Bleed-Valve to Pressure Regulator Tube-Assembly for the rigid part of the sense line, look for: Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL
A.Wrinkles in bends	Maximum depth must be less than 5 percent of the tube diameter.	If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
B.Dents	Maximum depth must be less than 20 percent of the tube outside diameter. Maximum radius of the dent is not less than 2 times the tube wall thickness. Maximum of 4 dents per each one foot (305 mm) of tube. Minimum distance of 1.0 inch (25.4 mm) between dents. No limit to dents allowed except in bends, no dents are allowed in bends.	If the dents are less than the allowable limits, send tube in shop for evaluation. If the dents are more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
C.Flat areas	Maximum length must be less than 3 times the outside diameter of the tube. Contour change must be less than 20 percent of the outside diameter of the tube.	If the flat areas are less than the allowable limits, send tube in shop for evaluation. If the flat areas are more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
D.Nicks, Scratches, Chafing in straight section	Maximum depth must be less than 10 percent of the wall thickness of the tube. There is no limit to the number of nicks, scratches or chafing allowed in the straight section of the tube.	If the damage is less than the allowable limits, send tube in shop for evaluation. If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
E.Nicks, Scratches, Chafing in bends	Maximum depth must be less than 10 percent of the wall thickness of the tube.	If the damage is less than the allowable limits, send tube in shop for evaluation. If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-026) and (Ref. AMM TASK 36-11-49-400-026).
F.Splits, Cracks, Kinks	Maximum length must be less than the tube outside diameter.	If the damage is less than the tube OD, send tube in shop for evaluation.
	Maximum length same as or more than the tube outside diameter.	If the damage is the same as or more than the tube OD, send tube in shop for evaluation.
11.Examine the Tee Assembly to Hose Tube Assembly, look for: Pneumatic System Hose and Tube Assemblies ** ON A/C NOT FOR ALL
A.Wrinkles in bends	Maximum depth must be less than 5 percent of the tube diameter.	If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
B.Dents	Maximum depth must be less than 20 percent of the tube outside diameter. Maximum radius of the dent is not less than 2 times the tube wall thickness. Maximum of 4 dents per each one foot (305 mm) of tube. Minimum distance of 1.0 inch (25.4 mm) between dents. No limit to dents allowed except in bends, no dents are allowed in bends.	If the dents are less than the allowable limits, send tube in shop for evaluation. If the dents are more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
C.Flat areas	Maximum length must be less than 3 times the outside diameter of the tube. Contour change must be less than 20 percent of the outside diameter of the tube.	If the flat areas are less than the allowable limits, send tube in shop for evaluation. If the flat areas are more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
D.Nicks, Scratches, Chafing in straight section	Maximum depth must be less than 10 percent of the wall thickness of the tube. There is no limit to the number of nicks, scratches or chafing allowed in the straight section of the tube.	If the damage is less than the allowable limits, send tube in shop for evaluation. If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
E.Nicks, Scratches, Chafing in bends	Maximum depth must be less than 10 percent of the wall thickness of the tube.	If the damage is less than the allowable limits, send tube in shop for evaluation. If the damage is more than the allowable limits, replace the tube (Ref. AMM TASK 36-11-49-000-047) and (Ref. AMM TASK 36-11-49-400-047).
F.Splits, Cracks, Kinks	Maximum length must be less than the tube outside diameter.	If the damage is less than the tube OD, send tube in shop for evaluation.
	Maximum length same as or more than the tube outside diameter.	If the damage is the same as or more than the tube OD, send tube in shop for evaluation.

5. Close-up
Subtask 36-11-49-410-104-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser doors (Ref. AMM TASK 78-36-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 36-11-49-440-073-A ** ON A/C NOT FOR ALL

B. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 36-11-49-410-105-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

Subtask 36-11-49-865-130-A ** ON A/C NOT FOR ALL

D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22

[Rev.10 from 2021] 2026.04.01 01:12:09 UTC