Replacement of the Tube Bundle Junction Box [CFMB]

TASK 72-00-00-920-806-A
Replacement of the Tube Bundle Junction Box

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

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	1	AIR SOURCE - REGULATED, FILTERED, DRY
No specific	AR	CAP - BLANKING
No specific	1	CONTAINER 1 L (1/4 USGAL)
No specific	AR	COTTON SWAB
No specific	1	PLIERS - CONNECTOR, JAW, SOFT
No specific	AR	PLUG - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	SCRAPER - PLASTIC
No specific	AR	WARNING NOTICE(S)
No specific	1	WRENCH - STANDARD
No specific	Torque wrench: range to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )
No specific	Torque wrench: range to between 37 and 33 lbf.in (0.42 and 0.37 m.daN )
No specific	Torque wrench: range to between 53 and 45 lbf.in (0.60 and 0.51 m.daN )
No specific	Torque wrench: range to between 55 and 50 lbf.in (0.62 and 0.57 m.daN )
No specific	Torque wrench: range to between 70 and 50 lbf.in (0.79 and 0.57 m.daN )
No specific	Torque wrench: range to between 80 and 70 lbf.in (0.90 and 0.79 m.daN )
No specific	Torque wrench: range to between 85 and 70 lbf.in (0.96 and 0.79 m.daN )
No specific	Torque wrench: range to between 90 and 85 lbf.in (1.02 and 0.96 m.daN )
No specific	Torque wrench: range to between 100 and 90 lbf.in (1.13 and 1.02 m.daN )
No specific	Torque wrench: range to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )
No specific	Torque wrench: range to between 130 and 125 lbf.in (1.47 and 1.41 m.daN )
No specific	Torque wrench: range to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )
No specific	Torque wrench: range to between 195 and 180 lbf.in (2.20 and 2.03 m.daN )
No specific	Torque wrench: range to between 200 and 180 lbf.in (2.26 and 2.03 m.daN )
No specific	Torque wrench: range to between 250 and 200 lbf.in (2.83 and 2.26 m.daN )
No specific	Torque wrench: range to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )
No specific	Torque wrench: range to between 370 and 335 lbf.in (4.18 and 3.79 m.daN )
No specific	Torque wrench: range to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CP1039)	acetone
(Material No.CP2242)	RTV 732
(Material No.CP2244)	primer 1200
(Material No.CP2266)	RTV 102
(Material No.CP2267)	RTV 106
(Material No.CP2317)	Mastinox 6856H
(Material No.CP2442)	engine oil
(Material No.CP2803)	anti-seize compound
(Material No.CP8001)	lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)	lockwire 0.032 in. (0.8 mm) dia
(Material No.CP8006)	safety cable 0.032 in. (0.8 mm) dia.

C. 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

D. Referenced Information

REFERENCE	DESIGNATION
TASK 24-42-00-861-001-A	Energize the Ground Service Network from the External Power
TASK 24-42-00-862-001-A	De-energize the Ground Service Network Supplied from the External Power
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 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
Struts
Fuel Servos Drain Tubes
Fireshield
Wiring J13 Harness
Lower Right Tubes
Tube Bundle
Fan Duct Panel
P25 Air Tube or Tube Coupling
Junction Box
Application of RTV on the Junction Box
Core Anti-Ice Ducts
Lower Left Tubes
Clamp Assemblies and VSV Drain Tube from the Tube Bundle
Harness from 6 o'clock Junction Box
Ignition Lead Cooling Air Tube
Ignition Lead Cooling Air Tube Attachment

3. Job Set-up
Subtask 72-00-00-861-058-A ** ON A/C NOT FOR ALL

A. Energize the ground service network
(Ref. AMM TASK 24-42-00-861-001).

Subtask 72-00-00-941-233-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On the 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 a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).

Subtask 72-00-00-865-058-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	ANTI ICE/ENG/2	1DN2	W10
122VU	ANTI ICE/ENG/1	1DN1	X10

Subtask 72-00-00-010-320-A ** ON A/C NOT FOR ALL

D. 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.

Subtask 72-00-00-040-157-A ** ON A/C NOT FOR ALL

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

Subtask 72-00-00-010-321-A ** ON A/C NOT FOR ALL

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

4. Procedure

WARNING: USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.

Subtask 72-00-00-020-090-A ** ON A/C NOT FOR ALL

A. Removal of the Struts

Struts ** ON A/C NOT FOR ALL

(1) Remove the beads of sealant from the lower struts, the lower stop, the junction box, the lower channel bracket and the splice assemblies with a SCRAPER - PLASTIC.
(2) Loosen and remove the screws (10), (15) and (20) which attach the lower struts (25), (30) and the splice assemblies (13).
(3) Remove the splice assemblies (13) from both sides of the junction box (05).
(4) Remove the left lower strut (25) and the right lower strut (30) each side of the fan frame strut at the 6 o'clock position.

Subtask 72-00-00-020-091-A ** ON A/C NOT FOR ALL

B. Removal of the Fuel Servos Drain Tubes

Fuel Servos Drain Tubes ** ON A/C NOT FOR ALL

CAUTION: INSTALL CAPS AND PLUGS ON THE ORIFICES OF ALL DISCONNECTED PIPES AND PARTS FOR THEIR PROTECTION AGAINST CONTAMINATION BY UNWANTED MATERIALS.

(1) Put a CONTAINER 1 L (1/4 USGAL) below the drain tube (40) to catch any fuel remaining in the tubes.
(2) Disconnect the drain tube (40) from heat exchanger drain tube (45) and let the fluid drain into the container.
(3) Disconnect the drain tube (35) from the fireshield.

NOTE: Use a second WRENCH - STANDARD to hold the engine tube fitting when you remove the drain tube (35).

(4) Disconnect the upper drain tube (40) from CFMI tube.
(5) Install the PLUG - BLANKING on all the tubes and fitting.
(6) Remove the bolt (50) and the nut (55) that attach the clamp (60) for maintaining the drain tube (35) and the CFMI tube.

NOTE: Keep the clamp (60) in position on the drain tube (35).

(7) Remove the bolt (65), the nut (70) and the clamp (75) that attach the drain tube (40) and the fuel overboard drain tube to the bracket.
(8) Remove the drain tubes (35) and (40) from the engine.

Subtask 72-00-00-020-092-A ** ON A/C NOT FOR ALL

C. Removal of the Middle Anti-ice Duct

Core Anti-Ice Ducts ** ON A/C NOT FOR ALL

CAUTION: INSTALL CAPS AND PLUGS ON THE ORIFICES OF ALL DISCONNECTED PIPES AND PARTS FOR THEIR PROTECTION AGAINST CONTAMINATION BY UNWANTED MATERIALS.

(1) Disconnect the air pressure tube (152) from the elbow (125).
(2) Disconnect the hose (151) from the air pressure tube (152).
(3) Remove the nuts (121), washers (122) and bolts (123) which attach clamps (124) to the bracket.
(4) Remove the nuts (153), (162) and bolts (154), (163) which attach clamps (124) to the flange STA 199 (A2).
(5) Remove the air pressure tube (152) from the engine.
(6) Remove the coupling (80) that connects the middle anti-ice duct (85) to the forward anti-ice duct (90).
(7) Remove the coupling (82) that connects the middle anti-ice duct (85) to the top anti-ice duct (95).

NOTE: The E-seals (100) can be used again if they are inspected and found to be serviceable.

(8) Remove the four bolts (105), the four washers (110) and the four nuts (115) that attach the middle anti-ice duct (85) to the fireshield.
(9) Remove the middle anti-ice duct (85) from the engine.
(10) Disconnect the hose (120) from the elbow (125).
(11) Put a PLUG - BLANKING on the two ends of the middle anti-ice duct (85), the top anti-ice duct (95) and the forward anti-ice duct (90).

Subtask 72-00-00-020-093-A ** ON A/C NOT FOR ALL

D. Removal of the Fireshield

Fireshield ** ON A/C NOT FOR ALL

(1) Remove the four bolts (155) and two bolts (160) that attach the fireshield (165) and the fireshield gasket (170) to the aft of the tube bundle cover (175).

Subtask 72-00-00-020-100-A ** ON A/C NOT FOR ALL

E. Disconnection of Wiring J13 Harness

Wiring J13 Harness ** ON A/C NOT FOR ALL

(1) Disconnect wiring J13 harness (180) from the CJ13 connector (185) in the 6 o'clock junction box (05).

NOTE: Use PLIERS - CONNECTOR, JAW, SOFT only if necessary.

(2) Remove wiring J13 harness (180) from mounting electrical clip (190) on tube bundle brackets.

NOTE: If burner staging valve harness is present, disconnect harness from bracket installed on the core flange.

Subtask 72-00-00-020-095-A ** ON A/C NOT FOR ALL

F. Removal of the Tube Bundle

NOTE: Put a CONTAINER 1 L (1/4 USGAL) below the pipes to collect the fluids during removal.

(1) Disconnection of the Lower Right Tubes and Disconnection of the Tube Bundle from the Fan Frame

Lower Right Tubes ** ON A/C NOT FOR ALL

(a) Disconnect the PS3 air tube (200) from PS3 air tube (205).
(b) Disconnect the P25 air tube (210) from P25 air tube (215).
(c) Remove the nut (220) and bolt (225) which attach clamps to the bracket.

NOTE: Keep all the clamps in position on the tubes.

NOTE: The PS3 tube (205) and the P25 air tube (215) will be removed with the other pipes that make up the tube bundle.

(2) Disconnection of the Lower Left Tubes and Disconnection of the Tube Bundle from the Fan Frame

Lower Left Tubes ** ON A/C NOT FOR ALL

(a) Disconnect the Low Pressure Turbine (LPT) fuel tube (240) from LPT fuel tube (245).
(b) Disconnect the High Pressure Turbine (HPT) fuel tube (250) from HPT fuel tube (255).

NOTE: The LPT fuel tube (245) and the HPT fuel tube (255) will be removed with the other tubes that make up the tube bundle.

(c) Disconnect the rear sump oil supply tube (345) from rear sump oil supply tube (350).
(d) Disconnect the rear sump oil scavenge tube (385) from rear sump oil scavenge tube (390).
(e) Disconnect the Rotor Active Clearance Control (RACC) hose (280) from RACC tube (285).

NOTE: CFM56-5B/P and CFM56-5B/2P engines do not have RACC tube.

(f) Disconnect the Variable Stator Vane (VSV) rod hose (300) from VSV rod tube (305).
(g) Disconnect the VSV head hose (310) from VSV head tube (315).
(h) Disconnect the PCR hose (355) from fuel PCR tube (360).
(i) Disconnect the Variable Bleed Valve (VBV) open hose (365) from VBV open tube (370).
(j) Disconnect the VBV close hose (375) from VBV close tube (380).

For 5B/(DAC + SAC PRE SB 72-0093) PRE SB 73-0112 and PRE SB 73-0114

(k) Disconnect the BMV-PB hose (260) from fuel BMV-PB tube (265).
(l) Disconnect the BMV-PSF hose (270) from Fuel BMV-PSF tube (275).

For 5B/DAC and SAC PRE SB 73-0112 and PRE SB 73-0114

(m) Disconnect the stage hose (290) from fuel stage tube (295).

For 5B/ NON 3D AERO SAC

(n) Disconnect the fuel injection nozzle supply hose (320) from fuel injection nozzle supply tube (325).

For 5B/DAC + SAC POST SB 72-0093 and PRE SB 73-0071

(o) Disconnect the fuel injection nozzle supply hose (330) from fuel injection nozzle supply tube (335).

For 5B/DAC + SAC POST SB 73-0071

(p) Disconnect the fuel injection nozzle supply hose (340) from fuel injection nozzle supply tube (335).

For 5B/ ALL

(3) Disconnect lower left side of tube bundle from 6 o'clock bracket.

NOTE: Keep all the spring clips installed on the pipes after removal.

(a) Remove nut (410) and bolt (415) from bracket (405).
(b) Remove nut (420) and bolt (425) from bracket (430).
(c) Remove nut (435) and bolt (440) from bracket (445).

SB 72-0093

(d) Remove nut (395) and bolt (400) from bracket (405).

END OF SB 72-0093

Subtask 72-00-00-020-096-A ** ON A/C NOT FOR ALL

G. Removal of the Clamp Assemblies and VSV Drain Tube from the Tube Bundle

Clamp Assemblies and VSV Drain Tube from the Tube Bundle ** ON A/C NOT FOR ALL

(1) Remove the VSV drain tube.
(a) Disconnect VSV drain tube (450) from drain tube in 6 o'clock junction box.
(b) Remove nut (455) and bolt (460) from clamp (465).
(c) Remove nut (470) and bolt (475) from bracket (480).

NOTE: Keep all the clamps installed on the pipe.

Subtask 72-00-00-020-097-A ** ON A/C NOT FOR ALL

H. Disconnection of the Tubes from the Junction Box

Tube Bundle ** ON A/C NOT FOR ALL

NOTE: If necessary, disconnect the wiring harnesses in the 6 o'clock junction box. Refer to the Para. 4.K.

(1) Disconnect the VBV open tube (370) from junction box.
(2) Disconnect the VBV close tube (380) from junction box.
(3) Disconnect the VSV head tube (315) from junction box.
(4) Disconnect the VSD Rod tube (305) from junction box.
(5) Disconnect the PS3 air tube (205) from junction box.
(6) Disconnect the HPT fuel tube (255) from junction box.
(7) Disconnect the LPT fuel tube (245) from junction box.
(8) Disconnect the RACC tube (285) from junction box.
(9) Disconnect the fuel PCR tube (360) from junction box.
(10) Disconnect the P25 air tube (215) from junction box.
(11) Disconnect the oil supply rear sump tube (350) from junction box.
(12) Disconnect the oil scavenge rear sump tube (390) from junction box.

For 5B/SAC: PRE SB 72-0093, PRE SB 73-0112 AND PRE SB 73-0114

(13) Disconnect the fuel injection nozzle supply tube (325) from junction box.

For 5B/DAC + (SAC POST SB 72-0093): PRE 73-0112 and PRE SB 73-0114

(14) Disconnect the fuel injection nozzle supply tube (335) from junction box.

For 5B/DAC + SAC: POST 73-0112 and POST SB 73-0114

(15) Disconnect the fuel injection nozzle supply tube (325) from junction box.

For 5B/DAC + SAC: PRE SB 73-0112 AND PRE SB 73-0114

(16) Disconnect the fuel stage tube (295) from junction box.
(17) Disconnect the fuel drain tube (485) from junction box.

For 5B/(DAC + SAC POST SB 72-0093): PRE SB 73-0112 AND PRE SB 73-0114

(18) Disconnect the fuel BMV-PB tube (265) from junction box.
(19) Disconnect the fuel BMV-PSF tube (275) from junction box.

Subtask 72-00-00-020-098-A ** ON A/C NOT FOR ALL

I. Disconnection of the Lower Tube Bundle Bracket and Remove the Tube Bundle

Clamp Assemblies and VSV Drain Tube from the Tube Bundle ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT YOU HOLD THE TUBE BUNDLE DURING THE REMOVAL OF THE BOLTS. IF YOU DO NOT OBEY THIS INSTRUCTION, YOU WILL CAUSE DAMAGE TO THE TUBE BUNDLE ASSEMBLY.

(1) Remove bolts (490), keep washers (495) and remove plate (500).
(2) Remove the tube bundle assembly from the 6 o'clock junction box.
(3) Put PLUG - BLANKING on each tube.
(4) Place the tube bundle assembly on a work bench.

Subtask 72-00-00-020-099-A ** ON A/C NOT FOR ALL

J. Disconnection of all Harnesses from the 6 o'clock Junction Box

Harness from 6 o'clock Junction Box ** ON A/C NOT FOR ALL

NOTE: Start from right position.

(1) Disconnect wiring J11R harness (505) from the CJ11R receptacle (510) in the 6 o'clock junction box (05).
(2) Disconnect wiring J12R harness (515) from the CJ12R receptacle (520) in the 6 o'clock junction box (05).
(3) Disconnect wiring J11L harness (525) from the CJ11L bulkhead connector (530) in the 6 o'clock junction box (05).
(4) Disconnect wiring J12L harness (535) from the CJ12L bulkhead connector (540) in the 6 o'clock junction box (05).

NOTE: Use PLIERS - CONNECTOR, JAW, SOFT only if necessary.

(5) Remove the bolts (545) and the bolts (550) which attach the CJ11R receptacle (510) and CJ12R receptacle (520) to the 6 o'clock junction box (05).

For 5B/SAC

(6) Remove the bolts (555) and (560) which attach the clamps (565) and (570) to the 6 o'clock junction box cover.

For ALL

(7) Cut and remove the lockwire which safeties the CJ11L, CJ12L and CJ13 bulkhead connector nuts together.
(8) Remove the nuts (575), (580) and (585) which attach the bulkhead connectors (530), (540) and (590) to the 6 o'clock junction box (05).
(9) Put CAP - BLANKING on the disconnected electrical connectors.

Subtask 72-00-00-020-101-A ** ON A/C NOT FOR ALL

K. Removal of the Fan Duct Panels from the Fan Frame

Fan Duct Panel ** ON A/C NOT FOR ALL

CAUTION: DURING REMOVAL OF FAN DUCT PANELS, DO NOT FULLY REMOVE CAPTIVE SCREWS FROM PANEL. THESE SCREWS ARE HELD IN PLACE BY A RETAINING BUSHING ON THE BACK SIDE OF THE PANELS WHICH MAY FALL INTO THE VBV CAVITY IF SCREWS ARE FULLY REMOVED. AFTER REMOVAL OF EACH PANEL, IT MUST BE VERIFIED THAT BUSHINGS ARE STILL WITH PANEL AND NOT IN VBV CAVITY.

(1) Remove the fan duct panel from each side the 6 o'clock junction box as follows:
(a) Loosen the captive bolts (605) and remove the fan duct panel (610) between struts No.7 and No.8.
(b) Loosen the captive bolts (605) and remove the fan duct panel (620) between struts No.6 and No.7.

Subtask 72-00-00-020-102-A ** ON A/C NOT FOR ALL

L. Removal of the P25 Air Tube or the Tube Coupling from the Junction Box

P25 Air Tube or Tube Coupling ** ON A/C NOT FOR ALL

NOTE: The junction box (05) is fitted with the P25 air tube (630) or the tube coupling (635).

(1) Removal of the P25 Air Tube
(a) Remove the plain nut (625) which attaches the P25 air tube (630) in the junction box (05).
(2) Removal of the Tube Coupling
(a) Remove the plain nut (625) which attaches the tube coupling (635) in the junction box (05).

Subtask 72-00-00-020-103-A ** ON A/C NOT FOR ALL

M. Removal of the Ignition Lead Cooling Air Tube from the Junction Box

Ignition Lead Cooling Air Tube ** ON A/C NOT FOR ALL

(1) Remove the four bolts (640) and the bolt (645) from the tube bundle cover (175) equipped with the junction plate (650).
(2) Loosen the ignition lead cooling air tube (655) from the tube boss connection nipple (660).
(3) Remove the ignition lead cooling air tube (655) with tube elbow assembly (665) from the tube nipple (670).
(4) Remove the ignition lead cooling air tube (655) from the tube boss connection nipple (660) of the junction plate (650).
(5) Remove the tube nipple (670) and the bolt (675) which attach the air elbow (680) and the junction box to the fan frame.
(6) Keep the air elbow (680).
(7) Remove the screws (690) from the protective bracket (695).
(8) Re-install the protective bracket (695) with the screws (690) on the new junction box (05).
(9) TORQUE the screws (690) to between 130 and 125 lbf.in (1.47 and 1.41 m.daN )

Subtask 72-00-00-020-104-A ** ON A/C NOT FOR ALL

N. Removal of the Junction Box from the Fan Frame

Junction Box ** ON A/C NOT FOR ALL

CAUTION: USE TWO WRENCHES TO LOOSEN THE NUTS. USE ONE WRENCH TO HOLD THE TUBE. USE THE OTHER WRENCH TO LOOSEN THE NUT. IF YOU DO NOT USE TWO WRENCHES, DAMAGE TO THE FUEL DISTRIBUTION MANIFOLD TUBES CAN OCCUR.

(1) Remove the two nuts (700) and the two nuts (705) which attach the fuel distribution manifold tubes (710) to the junction box (05) on right side.
(2) Remove the three bolts (715) which attach the junction box (05) to the fan frame.
(3) Remove the bolts (720) and the washers (735) on left side of the junction box (05) which attach the inner flange adapter ring left (725) to the fan frame rear flange (730).

NOTE: Remove a minimum of eleven bolts (720).

(4) Install a locally manufactured plastic shim (722) in the fifth threaded hole of the fan frame rear flange (730).

NOTE: Thickness of shim (722), Dimension A equals to 0.98 in. (24.89 mm).

NOTE: The installation of shim (722) makes the removal of the junction box (05) easier by the left side.

(5) Remove the junction box by the left side of the engine.

Subtask 72-00-00-420-085-A ** ON A/C NOT FOR ALL

O. Re-installation of the New Junction Box on the Fan Frame

Junction Box ** ON A/C NOT FOR ALL

(1) Make the preparation of the lower struts and the sitting area of the junction box (05).
(a) Remove the old RTV.
(b) Clean the area to be coated with acetone (Material No.CP1039) .
(c) Dry parts with clean AIR SOURCE - REGULATED, FILTERED, DRY.
(d) Apply a thin layer of primer 1200 (Material No.CP2244) to the area to be coated and let dry for 30 minutes.
1 Use COTTON SWAB to apply primer.
(2) Installation of the 6 o'clock New Junction Box on the Fan Frame
(a) Install the junction box (05) by the left side of the engine.
(b) Remove the shim (722) at the fifth threaded hole of the fan frame rear flange (730).
(c) Install the bolts (720) and the washers (735) on left side of the junction box (05) which attach the inner flange adapter ring left (725) to the fan frame rear flange (730).

NOTE: The number of bolts (720) that must be re-installed is the same as the number that has been necessary during the removal procedure.

1 Apply Mastinox 6856H (Material No.CP2317) to all bolts when you install them.
(d) TORQUE the bolts (720) to between 80 and 70 lbf.in (0.90 and 0.79 m.daN )

.
(e) Attach the 6 o'clock junction box (05) to the fan frame with three bolts (715).
(f) TORQUE the 3 bolts (715) to between 370 and 335 lbf.in (4.18 and 3.79 m.daN )

.
(3) Installation of the 6 o'clock Junction Box to the Fuel Distribution Manifold Tubes

CAUTION: YOU MUST USE TWO WRENCHES AND HOLD THE COMPONENT WHEN YOU REMOVE/INSTALL THE PIPE COUPLINGS AND/OR UNIONS. THIS PREVENTS DAMAGE TO THE COMPONENT.

(a) Attach the 6 o'clock junction box (05) to the fuel distribution manifold tubes (710) with two nuts (700) and two nuts (705).

NOTE: Use engine oil (Material No.CP2442) to install the nuts more easily.

(b) TORQUE nuts (700) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(c) TORQUE nuts (705) to between 200 and 180 lbf.in (2.26 and 2.03 m.daN )

.
(d) Safety the nuts (700) and (705) with CP8001lockwire 0.032 in. (0.8 mm) dia., CP8002lockwire 0.032 in. (0.8 mm) dia or CP8006safety cable 0.032 in. (0.8 mm) dia..

Subtask 72-00-00-420-086-A ** ON A/C NOT FOR ALL

P. Installation of the Ignition Lead Cooling Air Tube on the Junction Box

Ignition Lead Cooling Air Tube ** ON A/C NOT FOR ALL

CAUTION: MAKE SURE THAT THE SEALS ARE IN GOOD CONDITION. IF THEY ARE NOT, DAMAGE CAN OCCUR.

(1) Install air elbow (680) in the fan frame hub.
(2) Attach air elbow (680) with bolt (675).
(3) Install tube nipple (670) in the air elbow (680) through the 6 o'clock junction box.
(4) TORQUE tube nipple (670) to between 195 and 180 lbf.in (2.20 and 2.03 m.daN )

.
(5) TORQUE bolt (675) to between 370 and 335 lbf.in (4.18 and 3.79 m.daN )

.
(6) Install tube bundle cover (175) equipped with the junction plate (650) on the junction box (05).
(7) Install four bolts (640) and bolt (645) on the tube bundle cover (175) equipped with the junction plate (650).
(8) TORQUE the four bolts (640) and the bolt (645) to between 37 and 33 lbf.in (0.42 and 0.37 m.daN )

.
(9) Connect the ignition lead cooling air tube (655) from the tube boss connection nipple (660) on the junction plate (650).

NOTE: The ignition lead cooling air tube (655) was equipped with the tube elbow assembly (665).

(10) Install tube elbow assembly (665) on the tube nipple (670).
(11) TORQUE tube elbow assembly (665) on the tube nipple (670) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

NOTE: Make sure that you keep a 0.1 in. (2.54 mm) clearance between the junction box (05) and the ignition lead cooling air tube (655).

(12) TORQUE the coupling nut between the ignition lead cooling air tube (655) and the tube boss connection nipple (660) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(13) Safety the tube nipple (670) with CP8001lockwire 0.032 in. (0.8 mm) dia., CP8002lockwire 0.032 in. (0.8 mm) dia or CP8006safety cable 0.032 in. (0.8 mm) dia. to the bracket in the junction box (05).

Subtask 72-00-00-390-050-A ** ON A/C NOT FOR ALL

Q. Apply RTV under the 6 o'clock junction box.

Application of RTV on the Junction Box ** ON A/C NOT FOR ALL

(1) Apply a bead of RTV 102 (Material No.CP2266) or RTV 732 (Material No.CP2242) between the fan frame and the junction box (05) on Areas A and B, but not in Area C. Let it dry.

Subtask 72-00-00-420-087-A ** ON A/C NOT FOR ALL

R. Installation of the P25 Air Tube or Tube Coupling on the Junction Box

P25 Air Tube or Tube Coupling ** ON A/C NOT FOR ALL

NOTE: The junction box (05) is fitted with the P25 air tube (630) or the tube coupling (635).

(1) Installation of the Tube Coupling
(a) Install tube coupling (635) on the junction box (05) at the 6 o'clock position and attach it with plain nut (625).
(b) TORQUE plain nut (625) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(c) Safety the plain nut (625) with CP8001lockwire 0.032 in. (0.8 mm) dia. CP8002lockwire 0.032 in. (0.8 mm) dia or CP8006safety cable 0.032 in. (0.8 mm) dia..
(2) Installation of the P25 Air Tube
(a) Install plain nut (625) which attaches the P25 air tube (630) in the junction box (05).
(b) TORQUE plain nut (625) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(c) Safety the plain nut (625) with CP8001lockwire 0.032 in. (0.8 mm) dia., CP8002lockwire 0.032 in. (0.8 mm) dia or CP8006safety cable 0.032 in. (0.8 mm) dia..

Subtask 72-00-00-420-088-A ** ON A/C NOT FOR ALL

S. Installation of the Fan Duct Panels on the Fan Frame

Fan Duct Panel ** ON A/C NOT FOR ALL

(1) Install fan duct panels each side the 6 o'clock junction box as follow:
(a) Install the fan duct panel (610) between struts No.7 and No.8.
(b) Install the fan duct panel (620) between struts No.6 and No.7.
(c) TORQUE the captive bolts (605) to between 90 and 85 lbf.in (1.02 and 0.96 m.daN )

Subtask 72-00-00-420-089-A ** ON A/C NOT FOR ALL

T. Connection of all Harnesses on the 6 o'clock Junction Box

Harness from 6 o'clock Junction Box ** ON A/C NOT FOR ALL

(1) Install the CJ11R receptacle (510) and CJ12R receptacle (520) in the 6 o'clock junction box (05).
(2) Attach them with the bolts (545) and (550).
(3) TORQUE the bolts (545) and (550) to between 55 and 50 lbf.in (0.62 and 0.57 m.daN )

.

For 5B/SAC

(4) Attach the clamps (565) and (570) with the bolts (555) and (560) to the 6 o'clock junction box cover.
(5) TORQUE the bolts (555) and (560) to between 55 and 50 lbf.in (0.62 and 0.57 m.daN )

.

For ALL

(6) Connect wiring J11R harness (505) to the CJ11R receptacle (510) in the 6 o'clock junction box (05).
(7) Connect wiring J12R harness (515) to the CJ12R receptacle (520) in the 6 o'clock junction box (05).

NOTE: Use PLIERS - CONNECTORS, JAW, SOFT only if necessary.

NOTE: If necessary, connect the wiring harnesses in the 6 o'clock junction box after the installation of the tubes in the junction box. Refer to the Para. 4.W.

(8) Install the bulkhead connectors (530), (540) and (590) to the 6 o'clock junction box (05).
(9) Attach them with the nuts (575), (580) and (585).
(10) TORQUE the nuts (575), (580) and (585) to between 100 and 90 lbf.in (1.13 and 1.02 m.daN )

.
(11) Safety the nuts (575), (580) and (585) with CP8001lockwire 0.032 in. (0.8 mm) dia., CP8002lockwire 0.032 in. (0.8 mm) dia or CP8006safety cable 0.032 in. (0.8 mm) dia..
(12) Connect wiring J11L harness (525) to the CJ11L bulkhead connector (530) in the 6 o'clock junction box (05).
(13) Connect wiring J12L harness (535) to the CJ12L bulkhead connector (540) in the 6 o'clock junction box (05).

NOTE: The wiring J13 harness (180) will be installed later.

Subtask 72-00-00-420-090-A ** ON A/C NOT FOR ALL

U. Install the Tube Bundle on the 6 o'clock Junction Box

Tube Bundle ** ON A/C NOT FOR ALL

(1) Connect the tubes of the tube bundle to the related nipples or tube coupling in the junction box.
(2) Torque the coupling in the junction box.

NOTE: Use engine oil (Material No.CP2442) to install the nut more easily.

NOTE: To make the installation of the tube bundle easier, attach and torque, in the first time, the fuel injection nozzle supply tube and the oil scavenge rear sump tube.

For 5B/SAC: PRE SB 72-0093, PRE SB 73-0112 AND PRE SB 73-0114

(a) Connect the fuel injection nozzle supply tube (325) on the junction box.
(b) TORQUE the fuel injection nozzle supply tube (325) to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

.

For 5B/DAC + (SAC POST SB 72-0093): PRE SB 73-0112 AND PRE SB 73-0114

(c) Connect the fuel injection nozzle supply tube (335) on the junction box.
(d) TORQUE the fuel injection nozzle supply tube (335) to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

.

For 5B/DAC + SAC: POST SB 73-0112 AND POST SB 73-0114

(e) Connect the fuel injection nozzle supply tube (325) on the junction box.
(f) TORQUE the fuel injection nozzle supply tube (325) to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

.

For ALL

(g) Connect the oil scavenge rear sump tube (390) on the junction box.
(h) TORQUE the oil scavenge rear sump tube (390) to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

.
(i) Connect the VSV head tube (315) on the junction box.
(j) TORQUE the VSV head tube (315) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(k) Connect the VSD ROD tube (305) on the junction box.
(l) TORQUE the VSD ROD tube (305) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(m) Connect the VBV open tube (370) on the junction box.
(n) TORQUE the VBV open tube (370) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(o) Connect the VBV close tube (380) on the junction box.
(p) TORQUE the VBV close tube (380) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(q) Connect the HPT fuel tube (255) on the junction box.
(r) TORQUE the HPT fuel tube (255) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(s) Connect the LPT fuel tube (245) on the junction box.
(t) TORQUE the LPT fuel tube (245) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(u) Connect the PS3 air tube (205) on the junction box.
(v) TORQUE the PS3 air tube (205) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(w) Connect the RACC tube (285) on the junction box.
(x) TORQUE the RACC tube (285) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(y) Connect the fuel PCR tube (360) on the junction box.
(z) TORQUE the fuel PCR tube (360) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(aa) Connect the P25 air tube (215) on the junction box.
(ab) TORQUE the P25 air tube (215) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(ac) Connect the oil supply rear sump tube (350) on the junction box.
(ad) TORQUE the oil supply rear sump tube (350) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.

For 5B/DAC + SAC: PRE SB 73-0112 AND PRE SB 73-0114

(ae) Connect the fuel drain tube (485) on the junction box.
(af) TORQUE the fuel drain tube (485) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(ag) Connect the fuel stage tube (295) on the junction box.
(ah) TORQUE the fuel stage tube (295) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.

For 5B/(DAC + SAC POST SB 72-0093): PRE SB 73-0112 AND PRE SB 73-0114

(ai) Connect the fuel BMV-PB tube (265) on the junction box.
(aj) TORQUE the fuel BMV-PB tube (265) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(ak) Connect the fuel BMV-PSF tube (275) on the junction box.
(al) TORQUE the fuel BMV-PSF tube (275) to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

Subtask 72-00-00-420-091-A ** ON A/C NOT FOR ALL

V. Installation of the Clamp assemblies and VSV Drain Tube on the Tube Bundle

Clamp Assemblies and VSV Drain Tube from the Tube Bundle ** ON A/C NOT FOR ALL

(1) Install the plate (500) which holds the tube bundle on the flange STA 199 (A2).

NOTE: Make sure that the plastic bushing is installed on the plate (500).

(2) Attach the assembly with the bolts (490) and the washers (495).
(3) TORQUE the assembly with the bolts (490) to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )

.
(4) Put the VSV drain tube (450) in position on the rear face of the tube bundle.
(5) Connect the VSV drain tube (450) on the drain tube in 6 o'clock junction box.

NOTE: Tighten the VSV drain tube (450) with your hand.

(6) Attach the VSV drain tube (450) to the clamp (465) with nut (455) and bolt (460).
(7) TORQUE the bolt (460) to between 55 and 50 lbf.in (0.62 and 0.57 m.daN )

.
(8) Attach the VSV drain tube (450) to the bracket (480) with nut (470) and bolt (475).
(9) TORQUE the bolt (475) to between 55 and 50 lbf.in (0.62 and 0.57 m.daN )

.
(10) TORQUE the VSV drain tube (450) to the drain tube in 6 o'clock junction box to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

Subtask 72-00-00-420-092-A ** ON A/C NOT FOR ALL

W. Connection of the Lower Tubes of the Tube Bundle
(1) Connection of the lower left tubes of the tube bundle.
(a) Connect the LPT fuel tube (245) to the LPT fuel tube (240).
(b) TORQUE the coupling nut to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(c) Connect the HPT fuel tube (255) to the HPT fuel tube (250).
(d) TORQUE the coupling nut to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(e) Connect the rear sump oil supply tube (350) to the rear sump oil supply tube (345).
(f) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(g) Connect the oil scavenge rear sump tube (390) to the rear sump oil scavenge tube (385).
(h) TORQUE the coupling nut to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

.
(i) Safety the nut with CP8001lockwire 0.032 in. (0.8 mm) dia., CP8002lockwire 0.032 in. (0.8 mm) dia or CP8006safety cable 0.032 in. (0.8 mm) dia..
(j) Connect the RACC tube (285) to the RACC hose (280).
(k) TORQUE the coupling nut to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

NOTE: CFM56-5B/P and -5B/2P engines do not have RACC tube.

(l) Connect the VSV ROD tube (305) to the VSV ROD hose (300).
(m) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(n) Connect the VSV head tube (315) to the VSV head hose (310).
(o) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(p) Connect the fuel PCR tube (360) to the PCR hose (355).
(q) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(r) Connect the VBV Open tube (370) to the VBV open hose (365).
(s) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(t) Connect the VBV close tube (380) to the VBV close hose (375).
(u) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.

For 5B/(DAC + SAC PRE SB 72-0093) PRE SB 73-0112 AND PRE SB 73-0114

(v) Connect the fuel BMV-PB tube (265) to the BMV-PB hose (260).
(w) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.
(x) Connect the fuel BMV-PSF tube (275) to the BMV-PSF hose (270).
(y) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

.

For 5B/DAC and SAC PRE SB 73-0112 AND PRE SB 73-0114

(z) Connect the fuel stage tube (295) to the stage hose (290).
(aa) TORQUE the coupling nut to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.

For 5B/ NON 3D AERO SAC

(ab) Connect the fuel injection nozzle supply tube (325) to the Fuel Injection Nozzle Supply hose (320).
(ac) TORQUE the coupling nut to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

.

For 5B/DAC + SAC POST SB 72-0093 AND PRE SB 73-0071
(ad) Connect the fuel injection nozzle supply tube (335) to the fuel injection nozzle supply hose (330).
(ae) TORQUE the coupling nut to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

.

For 5B/DAC + SAC POST SB 73-0071

(af) Connect the fuel injection nozzle supply tube (335) to the fuel injection nozzle supply hose (340).
(ag) TORQUE the coupling nut to between 1100 and 900 lbf.in (12.43 and 10.17 m.daN )

.

For 5B/ ALL

(2) Installation of the Lower Left Side of Tube Bundle on 6 o'clock Bracket

NOTE: Make sure that spring clips are installed on the pipes.

(a) Install the bolt (415), head downward, and the nut (410) to the bracket (405).
1 TORQUE the nut to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )

.
(b) Install the bolt (425) and the nut (420) to the bracket (430).
1 TORQUE the nut to between 55 and 50 lbf.in (0.62 and 0.57 m.daN )

.
(c) Install the bolt (440) and the nut (435) to the bracket (445).
1 TORQUE the nut to between 55 and 50 lbf.in (0.62 and 0.57 m.daN )

.

SB 72-0093

(d) Install the bolt (400), head downward, and the nut (395) to the bracket (405).
1 TORQUE the nut to between 110 and 100 lbf.in (1.24 and 1.13 m.daN )

.

END SB 72-0093

(3) Connection of the Lower Right Tubes of the Tube Bundle

Lower Right Tubes ** ON A/C NOT FOR ALL

(a) Connect the PS3 air tube (205) to the PS3 air tube (200).
(b) TORQUE the coupling nut to between 300 and 270 lbf.in (3.39 and 3.05 m.daN )

. Safety the nut with CP8002lockwire 0.032 in. (0.8 mm) dia or CP8006safety cable 0.032 in. (0.8 mm) dia..
(c) Connect the P25 air tube (215) to the P25 air tube (210).
(d) TORQUE the coupling nut to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(e) Safety the nut with CP8001lockwire 0.032 in. (0.8 mm) dia., CP8002lockwire 0.032 in. (0.8 mm) dia or CP8006safety cable 0.032 in. (0.8 mm) dia..
(f) Install nut (220) and bolt (225) which attach clamps on the bracket.
(g) TORQUE the nut (220) to between 55 and 50 lbf.in (0.62 and 0.57 m.daN )

Subtask 72-00-00-420-093-A ** ON A/C NOT FOR ALL

X. Connection of the Wiring J13 Harness on the 6 o'clock Junction Box

Wiring J13 Harness ** ON A/C NOT FOR ALL

(1) Install wiring J13 harness (180) into mounting electrical clip (190) on tube bundle brackets.
(2) Connect wiring J13 harness (180) to the CJ13 connector (185) in the 6 o'clock junction box (05). Use PLIERS - CONNECTOR, JAW, SOFT only if necessary.

NOTE: If burner staging valve harness is present, connect harness to bracket installed on the core flange.

Subtask 72-00-00-420-094-A ** ON A/C NOT FOR ALL

Y. Installation of the Fireshield on the 6 o'clock Junction Box

Fireshield ** ON A/C NOT FOR ALL

(1) Install the fireshield (165) on the aft face of the tube bundle cover (175) equipped with the fireshield gasket (170), the four bolts (155) and the two bolts (160).
(2) TORQUE the four bolts (155) and the two bolts (160) to between 70 and 50 lbf.in (0.79 and 0.57 m.daN )

Subtask 72-00-00-420-095-A ** ON A/C NOT FOR ALL

Z. Installation of the Middle Anti-ice Duct

Core Anti-Ice Ducts ** ON A/C NOT FOR ALL

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

(1) Apply a layer of anti-seize compound (Material No.CP2803) on the air pressure tube (152) threads.
(2) Connect the air pressure tube (152) to the elbow (125).
(3) Attach the air pressure tube (152) to the fairlead bracket of the tube bundle with clamps (124), bolts (123), washers (122) and nuts (121).
(4) TORQUE the nuts (121) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(5) Attach the air pressure tube (152) to the drain tube bracket on flange STA.199 (A2).
(a) Use clamps (124), nut (153) and bolt (154).
(6) TORQUE the nut (153) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(7) Attach the air pressure tube (152) to the upper bracket (161) on flange STA.199 (A2).
(a) Use clamps (124), nut (162) and bolt (163).
(8) TORQUE the nut (162) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(9) Connect the air pressure tube (152) to the elbow (125).
(10) TORQUE the air pressure tube (152) coupling nut on the elbow (125) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(a) Make sure you hold the fittings with a second WRENCH - STANDARD when you torque the coupling nut.
(11) Connect the hose (151) to the air pressure tube (152).
(12) TORQUE the hose (151) coupling nut to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

.
(13) Remove the PLUG - BLANKING from the anti-ice ducts.
(14) Install the middle anti-ice duct (85) on the fireshield.
(15) Install the four bolts (105), washers (110) and nuts (115) that attach the middle anti-ice duct (85) to the fireshield.
(a) Do not torque the nuts (115) at this time.
(16) Make sure that the middle anti-ice duct (85) is in correct position.
(17) Installation of the couplings

CAUTION: MAKE SURE THE SMOOTH CIRCULAR SURFACE OF THE COUPLING IS RADIALLY OUTBOARD FROM THE ENGINE. DO NOT LET THE COUPLING TOUCH ENGINE COMPONENTS OR STRUCTURE. DAMAGE TO THE COMPONENTS OR STRUCTURE COULD OCCUR.

(a) Install the coupling (82) and the E-seal (100) that connect the middle anti-ice duct (85) to the top anti-ice duct (95).
(b) Install the coupling (80) and the E-seal (100) that connect the middle anti-ice duct (85) to the forward anti-ice duct (90).
(18) TORQUE the four nuts (115) to between 70 and 50 lbf.in (0.79 and 0.57 m.daN )

.
(19) TORQUE the coupling nuts (80) and (82) to between 85 and 70 lbf.in (0.96 and 0.79 m.daN )

.
(20) Tap the perimeter of the couplings (80) and (82) with a fiber mallet.
(21) TORQUE the coupling nuts again to between 85 and 70 lbf.in (0.96 and 0.79 m.daN )

.
(22) Connect the hose (120) to the elbow (125).
(a) Hold the elbow (125) in position with a second WRENCH - STANDARD.
(23) TORQUE the coupling nut on the hose (120) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN )

Subtask 72-00-00-420-096-A ** ON A/C NOT FOR ALL

AA. Installation of the Fuel Servos Drain Tubes

Fuel Servos Drain Tubes ** ON A/C NOT FOR ALL

(1) Remove the plugs from all the drain tubes.
(2) Connect the drain tube (35) to the fitting on the fireshield.
(a) Do not torque the coupling nut at this time.
(3) Connect the upper drain tube (40) to the CFMI tube.
(a) Do not torque the coupling nut at this time.
(4) Connect the drain tube (40) to the heat exchanger drain tube (45). Do not torque the coupling nut at this time.
(5) Attach the drain tube (40) to the bracket on the transfer gearbox with the clamp (75), the bolt (65) and the nut (70).
(6) Attach the drain tube (35) with the CFMI tube to the tube bundle clamp with clamp (60), bolt (50) and nut (55).
(7) Make sure that the drain tube (35) is aligned correctly on the engine.
(8) TORQUE the nuts (55) and (70) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN )

.
(9) Torque the drain tube coupling nuts.

CAUTION: USE A SECOND WRENCH TO APPLY COUNTER TORQUE TO THE TUBES WHEN YOU CONNECT THE LOWER TUBES TO THE UPPER TUBES.

(a) TORQUE the drain tube (35) coupling nuts to between 250 and 200 lbf.in (2.83 and 2.26 m.daN )

.
(b) TORQUE the drain tube (40) coupling nuts to between 250 and 200 lbf.in (2.83 and 2.26 m.daN )

Subtask 72-00-00-420-097-A ** ON A/C NOT FOR ALL

AB. Installation of the Struts

Struts ** ON A/C NOT FOR ALL

(1) Apply a bead of RTV 106 (Material No.CP2267) on the lower stop fittings, the lower channel bracket and on the junction box (05).

NOTE: Apply a layer of sealant approximately 0.020 in. (0.51 mm) thick to the areas shown.

NOTE: Apply a bead of sealant with a radius of approximately 0.197 in. (5.00 mm) to seal the angle areas.

(2) Install the lower struts (25) and (30) on the bottom engine strut. Use the screws (10), (15) and (20).
(3) TORQUE the screws (10), (15) and (20) to between 53 and 45 lbf.in (0.60 and 0.51 m.daN )

.
(4) Apply a bead of RTV 106 (Material No.CP2267) on the junction box (05) and between the splice assemblies (13) and the inner flange.
(5) Install the splice assemblies (13) to the junction box (05) and the inner flange with the screws (10) and (15).
(6) TORQUE the screws (10) and (15) to between 53 and 45 lbf.in (0.60 and 0.51 m.daN )

.
(7) Apply a bead of RTV 106 (Material No.CP2267) at the junction of the lower struts (25) and (30) with the lower strut engine.

5. Close-up
Subtask 72-00-00-410-277-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 cowl doors (Ref. AMM TASK 78-36-00-410-040):
(3) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(4) FOR [1000EM2] (ENGINE-2)
461AL 462AR

Subtask 72-00-00-440-148-A ** ON A/C NOT FOR ALL

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

Subtask 72-00-00-410-278-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

Subtask 72-00-00-865-059-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
122VU	ANTI ICE/ENG/2	1DN2	W10
122VU	ANTI ICE/ENG/1	1DN1	X10

Subtask 72-00-00-860-128-A ** ON A/C NOT FOR ALL

E. Put the aircraft back to its initial configuration.
(1) Remove the access platform(s).
(2) Remove the WARNING NOTICE(S).

Subtask 72-00-00-862-057-A ** ON A/C NOT FOR ALL

F. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-42-00-862-001)

[Rev.10 from 2021] 2026.04.01 02:40:36 UTC