Detailed Inspection of Spinner, Engine Inlet, Fan Blades, Fan Outlet and Abradable Material [CFMB]

TASK 72-23-00-210-003-C
Detailed Inspection of Spinner, Engine Inlet, Fan Blades, Fan Outlet and Abradable Material

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.

WARNING: REFER TO THE MANUFACTURER'S MATERIAL SAFETY DATA SHEETS FOR CONSUMABLE MATERIAL INFORMATION. THIS INCLUDES HAZARDOUS INGREDIENTS, PHYSICAL AND CHEMICAL CHARACTERISTICS, FIRE, EXPLOSION, REACTIVITY, HEALTH HAZARD DATA, PRECAUTIONS FOR SAFE HANDLING, AND USE OF CONTROL MEASURES.

ZONE: 400
FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL

1. Reason for the Job
Refer to the MPD TASK: 722000-C1
DETAILED INSPECTION OF SPINER, ENGINE INLET, FAN BLADES, FAN OUTLET AND ABRADABLE MATERIAL.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE
No specific	1	MAT - PROTECTIVE
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP2216)	Loctite 496

C. Work Zones and Access Panels

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

D. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
TASK 72-00-00-200-025-A	Over-Serviceable-Limit Extensions
TASK 72-00-00-200-025-A-01	Over-Serviceable-Limit Extensions
TASK 72-21-00-000-005-A	Removal of the Spinner Front Cone
TASK 72-21-00-000-006-A	Removal of the Spinner Rear Cone
TASK 72-21-00-210-009-A	Inspection of Fan Rotor Blades Installed on the Fan Disk
TASK 72-21-00-300-001-A	Replacement of the Crimped Self-Locking Nuts on the Spinner Rear Cone
TASK 72-21-00-400-005-A	Installation of the Spinner Front Cone
TASK 72-21-00-400-006-A	Installation of the Spinner Rear Cone
TASK 72-23-00-000-008-A	Removal of the Fan Outlet Guide Vane (OGV) Doublets
TASK 72-23-00-300-040-A	Local Reconditioning of the Abradable Material- Defects less than 0.12 in. (3 mm) deep and 0.50 sq in (3.2 sq cm)
TASK 72-23-00-300-043-A	Repair of the Abradable (material) Shroud with Circular Patches
TASK 72-23-00-300-805-A	Fan Frame Assembly - Fan Inlet Case Repair - Local Reconditioning of the Abradable Silicone Liner (Large Depth)
TASK 72-23-00-300-806-A	Partial Replacement of the Abradable Liner with Square/Rectangular Patches
TASK 72-23-00-300-807-A	Partial Replacement of the Abradable Liner with Large Circular Patches
TASK 72-23-00-400-008-A	Installation of the Fan Outlet Guide Vane (OGV) Doublets
TASK 72-55-00-960-002-A	Replacement of LPT Shaft Plug O-rings
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-B	Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-B	Closing of the Thrust Reverser Doors
Fan Frame Casing, Fan Inlet Case and Abradable Cartridge - Inspection/Check
Inspection/Check of the Fan-Outlet Guide Vanes (OGV)
Outlet Guide Vanes (OGV) inner Platform for Cracks
Outlet Guide Vanes (OGV) inner Platform for Missing Material

3. Job Set-up
Subtask 72-23-00-941-080-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put the WARNING NOTICE(S) in position to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
(4) Put the ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE in position.
(5) Install the MAT - PROTECTIVE in the lower half of the inlet cowl.

Subtask 72-23-00-010-090-A ** ON A/C NOT FOR ALL

B. Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR

Subtask 72-23-00-040-067-A ** ON A/C NOT FOR ALL

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

Subtask 72-23-00-010-102-A ** ON A/C NOT FOR ALL

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

Subtask 72-23-00-020-077-A ** ON A/C NOT FOR ALL

E. Removal of the Spinner Cone
(1) Remove the spinner front cone (Ref. AMM TASK 72-21-00-000-005).
(2) Remove the spinner rear cone (Ref. AMM TASK 72-21-00-000-006).

4. Procedure
Subtask 72-23-00-210-058-A ** ON A/C NOT FOR ALL

A. Detailed Visual Inspection of the Spinner, Engine Inlet, Fan Blades, Fan Outlet and Abradable Material

INSPECT/CHECK	MAXIMUM SERVICEABLE LIMITS	REMARKS
1.Spinner front cone for:
A.Cracks	Not serviceable	Install a new or serviceable spinner front cone (Ref. AMM TASK 72-21-00-400-005).
B.Nicks, dents and scratches	No limited quantity
C.Loose or missing bonded washer	Not serviceable	Install the washer again with Loctite 496 (Material No.CP2216) and hold it in pressure.
D.Tip erosion	No limit if radius is not greater than 0.28 in. (7.11 mm) after you blend.	Do the blending procedure to the maximum serviceable limits or install a new serviceable spinner front cone (Ref. AMM TASK 72-21-00-400-005).
E.Corrosion marks (white mushroom pattern) before part removal	These corrosion marks are not serviceable.	Refer to over-serviceable-limit extensions (Ref. AMM TASK 72-00-00-200-025).
F.Swirl pattern faded or missing paint	Serviceable. Any amount of faded or missing paint permitted.
2.Spinner rear cone for:
A.Cracks	Not serviceable	Install a new or serviceable spinner rear cone (Ref. AMM TASK 72-21-00-400-006).
B.Dents	No limited quantity
C.Damaged surface protection	No limit if not more than ten percent of the total surface.	If more than ten percent of the total surface, install a new or serviceable spinner rear cone (Ref. AMM TASK 72-21-00-400-006).
D.Missing self-locking nuts	Not serviceable	Replace the nuts (Ref. AMM TASK 72-21-00-300-001) or install a new or serviceable spinner rear cone (Ref. AMM TASK 72-21-00-400-006).
E.Self-locking nuts with loss of self-locking quality	Not serviceable if running torque is less than 4 lbf.in (0.05 m.daN).	Replace the nuts (Ref. AMM TASK 72-21-00-300-001) or install a new or serviceable spinner rear cone (Ref. AMM TASK 72-21-00-400-006).
F.Self-locking nuts with axial looseness	Not more than 0.008 in. (0.20 mm)	Crimp again (no crack permitted) or replace the nuts (Ref. AMM TASK 72-21-00-300-001).
G.Self-locking nuts with lateral looseness	Not more than 0.008 in. (0.20 mm)	Replace the nuts (Ref. AMM TASK 72-21-00-300-001) or install a new or serviceable spinner rear cone (Ref. AMM TASK 72-21-00-400-006).
H.Oil wetting at inner of spinner cone or fan disk or forward fan shaft	None permitted	Refer to the over-serviceable-limit extensions (Ref. AMM TASK 72-00-00-200-025). Replace the O-rings on the Low Pressure Turbine (LPT) shaft plug (Ref. AMM TASK 72-55-00-960-002).
J.Seal ring tears	Maximum cumulated length 0.4 in. (10.16 mm)	Refer to the serviceable-limit extensions (Ref. AMM TASK 72-00-00-200-025). Install a new or serviceable spinner rear cone (Ref. AMM TASK 72-21-00-400-006). NOTE: When the serviceable limits for the steps that follow are more than specified, refer to the over-serviceable- limit extensions if necessary (Ref. AMM TASK 72-00-00-200-025).
3.Inlet case for: Fan Frame Casing, Fan Inlet Case and Abradable Cartridge - Inspection/Check ** ON A/C NOT FOR ALL
A.Cracks	Not permitted
B.Cracks or crazing in the rubber of AGB mount	Any amount
C.Nicks	On area A, if 0.012 in. (0,30 mm) max. depth and 0.046 sq.in. (30 sq.mm) max. surface. On area B, if 0.008 in. (0,20 mm) max. depth and 0.046 sq.in. (30 sq.mm) max. surface. On area C, if 0.012 in. (0,30 mm) max. depth and 0.077 sq.in. (50 sq.mm) max. surface.	50-cycle serviceable extension is allowed.
D.Scratches	0.008 in. (0,20 mm) max. depth and 1.968 in. (50 mm) max. length.	50-cycle serviceable extension is allowed.
E.Dents	On area A, if 0.002 in. (0,5 mm) max. depth and 0.124 sq.in. (80 sq.mm) max. surface. On area B, if 0.008 in. (0,20 mm) max. depth and 0.124 sq.in. (80 sq.mm) max. surface. On area C, if 0.02 in. (0,5 mm) max. depth and 0.155 sq.in. (100 sq.mm) max. surface.	50-cycle serviceable extension is allowed.
F.Wear	On areas A and B, if 0.004 in. (0,10 mm) max. depth and 0.465 sq.in. (300 sq.mm) max. surface. On area C, if 0.004 in. (0,10 mm) max. depth and 0.62 sq.in. (400 sq.mm) max. surface.	50-cycle serviceable extension is allowed.
4.Fan rotor blades: (Ref. AMM TASK 72-21-00-210-009)
5.Abradable for: Fan Frame Casing, Fan Inlet Case and Abradable Cartridge - Inspection/Check ** ON A/C NOT FOR ALL
A.Cracks	Any amount
B.Rubs	Any amount
C.Crater (length<5x width) and damage other than crack rub and circumferential defect	Cumulated damage more than 160 sq in. (1032.25 sq cm) with no area larger than 30 sq in. (193.54 sq cm) and : a) The maximum axial width (parallel to engine axis) is less than 2.5 in. (63.5 mm). b) The minimum distance between the areas is equal to the maximum dimension of the nearest damaged area. c) The fan case parent metal does not show through.	For defect above those limits: Local reconditioning: (Ref. AMM TASK 72-23-00-300-040) Circular patch: (Ref. AMM TASK 72-23-00-300-043) Large circular patch: ( (Ref. AMM TASK 72-23-00-300-807)) Square/rectangular patch: ( (Ref. AMM TASK 72-23-00-300-806)) Large depth: ( (Ref. AMM TASK 72-23-00-300-805)) Refer to the over-serviceable-limits extensions: (Ref. AMM TASK 72-00-00-200-025) NOTE: It is permitted to do a circular patch and local repairs at the same time.
D.Grooves (orientated within 0 deg. and 80 deg. from the engine axis and length>5x width)	All damage is permitted if: a) The maximum width of one groove is not more than 0.32 in. (8.12 mm). b) A maximum of total width of 1.25 in. (31.75 mm) of groove is with a minimum separation of 0.1 in. (2.54 mm). c) The fan case parent metal does not show through.	For defect above those limits: Local reconditioning: (Ref. AMM TASK 72-23-00-300-040) Large circular patch: ( (Ref. AMM TASK 72-23-00-300-807)) Square/rectangular patch: ( (Ref. AMM TASK 72-23-00-300-806)) Large depth: ( (Ref. AMM TASK 72-23-00-300-805)) Refer to the over-serviceable-limits extensions: (Ref. AMM TASK 72-00-00-200-025).
E.Circumferential defect (360 deg. or orientated within 80 deg. to 90 deg. from the engine axis)	All damage is permitted if: a) The maximum axial width (parallel to the engine axis) of one or cumulated defect is less than 1.5 in. (38.1 mm). b) The fan case parent metal does not show through.	For defect above those limits: Local reconditioning: (Ref. AMM TASK 72-23-00-300-040) Large circular patch: ( (Ref. AMM TASK 72-23-00-300-807)) Square/rectangular patch: ( (Ref. AMM TASK 72-23-00-300-806)) Large depth: ( (Ref. AMM TASK 72-23-00-300-805)) Refer to the over-serviceable-limits extensions: (Ref. AMM TASK 72-00-00-200-025).
6.Outlet Guide Vanes (OGV) for: Inspection/Check of the Fan-Outlet Guide Vanes (OGV) ** ON A/C NOT FOR ALL
A.Broken vane	Not serviceable	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008) or remove the vane doublet to be in 4. B. Missing Vane condition.
B.Missing vane	One doublet missing	10-cycle extension allowed with one doublet missing. Complete set inspection required when new doublet fitted. Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
C.Cracks
Airfoil	Not serviceable	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
Outer platform	Cracks from or along the airfoil are defined on the figure. See sheet 3 of the figure Inspection/Check of the Fan-Outlet Guide Vanes (OGV) ** ON A/C NOT FOR ALL	50-cycle extension allowed if cracks are found out of tolerance. Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
Inner platform Outlet Guide Vanes (OGV) inner Platform for Cracks ** ON A/C NOT FOR ALL	Any amount of longitudinal cracks in Area F.
	Transversal cracks are not serviceable.	1500-cycle extension is allowed if the inner platform has not more than:
		- 30 transversal cracks
		- 15 transversal cracks included 5 opened transversal cracks maximum in area E
		- 15 transversal cracks included 5 opened transversal cracks maximum in area I
		- 15 transversal cracks included 5 opened transversal cracks maximum in area M.
		This over-serviceable extension can be renewed after inspection.
		Do not change the place of a cracked OGV on the engine.
		If the extension is not applicable, replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
D.Missing material on the inner platform See Sheet 1 of Outlet Guide Vanes (OGV) inner Platform for Missing Material ** ON A/C NOT FOR ALL
Extrados or front edge	Not Serviceable	10-cycle extension is allowed for missing material, only on one side and less than 0.16 in.2 (103.23 mm2) on two platforms maximum.
		No missing OGV is allowed on the set. Do not change the place of an OGV with missing material on the engine.
		If the extension is not applicable, replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
Intrados or aft edge	Not serviceable	See Sheet 2 of Outlet Guide Vanes (OGV) inner Platform for Missing Material ** ON A/C NOT FOR ALL for over-serviceable-limit extensions, if material is missing on only one side of the inner platform.
		No missing OGV is allowed on the set. Do not change the place of an OGV with missing material on the engine.
		If the extension is not applicable, replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
E.Delamination	Not serviceable	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
F.Eroded surface (glass film)	50 percent of airfoil	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
G.Unbonding of metal leading edge	Up to 0.31 square in. (200 square mm) serviceable if no parent composite material.	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
	Over 0.31 square in. (200 square mm).	Remove the unbonding area. Refer to paragraph H. Metal leading edge missing.
H.Metal leading edge missing	Up to 0.78 in. (20 mm) height and 0.39 in. (10 mm) wide.	100-cycle extension allowed if missing material is over the maximum serviceable limits. Speed tape (CP2516) usage is recommended when missing metal on leading edge to preserve repair possibility, avoiding any damage on composite material.
J.Outer and inner platform debonding	Not serviceable	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
K.Nick and/or dents, on the leading edge (metallic leading edge)	Any amount of damage less than 0.12 in. (3 mm) deep and metal not torn: serviceable. If damage less than 0.12 in. (3 mm) deep and metal torn, refer to paragraph G.	A maximum service extension of 100 cycles is allowed if damage is between 0.12 in. (3 mm) and 0.19 in. (5 mm) deep.
L.Nick and/or dents, on the trailing edge	No limited number if less than 0.01 in. (0.25 mm) depth.	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
M.Nick and/or dent on the concave or convex side	No limited number if less than 0.02 in. (0.51 mm) depth.	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).
N.Nick and/or dent on the inner or outer platform	No limited number if less than 0.02 in. (0.51 mm) depth.	Replace the vane doublet (Ref. AMM TASK 72-23-00-000-008) and (Ref. AMM TASK 72-23-00-400-008).

5. Close-up
Subtask 72-23-00-420-087-A ** ON A/C NOT FOR ALL

A. Installation of the Spinner Cone:
(1) Install the spinner rear cone (Ref. AMM TASK 72-21-00-400-006).
(2) Install the spinner front cone (Ref. AMM TASK 72-21-00-400-005).

Subtask 72-23-00-410-084-A ** ON A/C NOT FOR ALL

B. 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 72-23-00-440-063-A ** ON A/C NOT FOR ALL

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

Subtask 72-23-00-410-094-A ** ON A/C NOT FOR ALL

D. 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 MAT - PROTECTIVE from the inlet cowl.
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:34:01 UTC