Removal of the Power Plant [IAE]

TASK 71-00-20-000-040-A
Removal of the Power Plant

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: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT. UNWANTED ELECTRICAL POWER CAN BE DANGEROUS.

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

NOTE: Make sure that you do the applicable storage procedures before you remove the power plant. The storage procedures are more satisfactory when you operate the engine or when you do the engine motoring.

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

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	BORESCOPE DIA 6 MM (0.2 IN.) MAX - SIDE VIEW FLEXIBLE
No specific	AR	CAP - BLANKING
No specific	1	CONTAINER - CLEAN, APPLICABLE
No specific	1	MIRROR - INSPECTION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 100 and 75 lbf.in (1.13 and 0.85 m.daN )
No specific	Torque wrench: range to between 120 and 110 lbf.in (1.36 and 1.24 m.daN )
No specific	Torque wrench: range to between 1584 and 1056 lbf.in (17.90 and 11.93 m.daN )
98D71203001000	1	CHEST,TORQUE SET-ENGINE R I
98D71203501000	1	BOOTSTRAP SYSTEM
ALT71000001	1	ELECTRICAL HOIST KIT
S1787CR	1	ENGINE CRADLE
S487ETT2	1	ENGINE TROLLEY
S889BH0	1	BRACE - HOLD OPEN COWLS
TMHBS13-00-00	1	BRACE-HOLD OPEN COWLS
TMHEC29-00-00	1	CRADLE,V2500 ENGINE
TMHET06-00-00	1	TRAILER,ENGINE GROUND HANDLING

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.V02-147)	lockwire
(Material No.V10-077)	lubricant (engine oil)

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. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
6	SEALING RING	AIPC 73-12-42-80-070

E. Referenced Information

REFERENCE	DESIGNATION
TASK 05-57-00-200-001-B	Aircraft Stability
TASK 29-10-00-864-001-A	Depressurize the Green Hydraulic System
TASK 29-10-00-864-002-A	Depressurize the Yellow Hydraulic System
TASK 29-14-00-614-001-A	Depressurization of the Hydraulic Reservoirs
TASK 29-14-49-000-001-A	Removal of the Reservoir Pressurization Hose
TASK 31-36-00-740-015-A	Printout of the Engine/APU Hours and Cycles Stored in the Flight Data Interface and Management Unit (FDIMU)
TASK 36-11-49-000-016-A	Removal of the Sense Line between the Bleed Pressure-Regulator Valve (PRV) and the Pylon Interface
TASK 54-57-22-000-004-A	Removal of the Lower Fairing Firewall Seals
TASK 54-57-22-400-004-A	Installation of the Lower Fairing Firewall Seals
TASK 70-11-56-910-001-A	Cleaning Requirements after Chemical Contact with Fire Extinguisher Agents, Hydraulic Fluid, Oil or Fuel
TASK 70-23-11-911-013-A	General Torque Tightening Techniques
TASK 70-23-13-911-010-A	Procedures for the Installation of Preformed Packings
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-71-42-000-010-A	Removal of the Drains Mast
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-32-00-010-010-A	Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A	Closing of the Thrust Reverser Halves
Hydraulic Control Unit
Fan Cowl and Thrust Reverser Braces
Fuel Drain Plug Location
LP/HP Fuel Pump Bleeder Plug
Power Plant, Right Side
Left Interface Junction Box
Forward Junction Box
Power Plant, Left Side
Left Connectors Location
TAI Location and Hydraulic Reservoir Pressurization Tube Location
Forward Engine Mount
Bootstrap Installation
Bootstrap Installation Manual Hoist Kit
Bootstrap Installation Electrical Hoist Kit
Engine Handling Points
Aft Engine Mount
Anti-Ice Pylon Duct

3. Job Set-up
Subtask 71-00-20-740-056-A ** ON A/C NOT FOR ALL

A. Do a print-out of the engine hours and cycles and keep the print with the engine for follow-up (Ref. AMM TASK 31-36-00-740-006) or (Ref. AMM TASK 31-36-00-740-015).

NOTE: Some tasks will possibly not be applicable depending on whether a Data Management Unit (DMU) or a Flight Data Interface and Management UNIT (FDIMU) is installed on the aircraft.

Subtask 71-00-20-941-050-A ** ON A/C NOT FOR ALL

B. Safety Precautions
(1) Make sure that the A/C is stable (Ref. AMM TASK 05-57-00-200-001).

NOTE: When the A/C is on jacks, make sure that it is leveled before you remove the engine.

(2) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(3) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(4) 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).
(5) On the panel 30VU:
(a) Make sure that the APU BLEED pushbutton switch is released (ON legend off).
(b) Install a warning notice to tell the persons not to press the APU BLEED pushbutton switch.
(6) Put a WARNING NOTICE(S) on the HP ground connector to tell persons not to pressurize the pneumatic system.

Subtask 71-00-20-865-050-A ** ON A/C NOT FOR ALL

WARNING: BEFORE YOU OPEN PHC CIRCUIT BREAKERS 2DA1(2,3), OPEN PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3). IF YOU DO NOT OBEY THIS SEQUENCE: - THE PROBES WILL BECOME TOO HOT. - THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.

WARNING: MAKE SURE THAT YOU OPEN THE CIRCUIT BREAKERS AS FOLLOWS:

1JH, 2JH1 AND 3JH1 BEFORE 2KS1
1JH, 2JH2 AND 3JH2 BEFORE 2KS2.

IF YOU DO NOT OBEY THIS SEQUENCE, THERE IS A RISK OF ELECTROCUTION. THIS IS BECAUSE YOU WILL START CONTINUOUS IGNITION IF YOU OPEN CIRCUIT BREAKER 2KS1 OR 2KS2 FIRST.

C. Open, safety and tag these circuit breakers in this sequence:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	ANTI ICE/PROBES/2/TAT	1DA2	Y15
122VU	ANTI ICE/PROBES/1/TAT	1DA1	Z12
49VU	ANTI ICE/PROBES/PITOT/1	3DA1	D02
122VU	ANTI ICE/PROBES/2/PITOT	3DA2	Y14
122VU	ANTI ICE/PROBES/3/PITOT	3DA3	Z16
49VU	ANTI ICE/PROBES/AOA/1	4DA1	D04
122VU	ANTI ICE/PROBES/2/AOA	4DA2	Y13
122VU	ANTI ICE/PROBES/3/AOA	4DA3	Z15
122VU	ANTI ICE/PROBES/1/STATIC	5DA1	Z13
122VU	ANTI ICE/PROBES/2/STATIC	5DA2	Y11
122VU	ANTI ICE/PROBES/3/STATIC	5DA3	Z14
49VU	ANTI ICE/RAIN/RPLNT/CAPT	1DB1	D01
122VU	ANTI ICE/RAIN/RPLNT/F/O	1DB2	W11
122VU	ANTI ICE/WINDOWS/L	4DG1	X14
122VU	ANTI ICE/WINDOWS/R	4DG2	W14
123VU	ANTI ICE/L/WHSLD	1DG1	AF10
123VU	ANTI ICE/R/WHSLD	1DG2	AF03
49VU	ENGINE/1 AND 2/IGN/SYS A	1JH	A03
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A	1WE1	Q43
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B	2WE1	Q44
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A	1WE2	Q41
121VU	ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B	2WE2	Q42
121VU	RCDR/DFDR	7TU	K16
49VU	COM/CVR/SPLY	23RK	E14
49VU	COM/CVR/CTL	26RK	E13
FOR FIN: 1000EM1 (ENGINE1)
121VU	ENGINE/IGN/ENG1/SYS A BAT	2JH1	P39
121VU	ENGINE/IGN/ENG1/SYS B	3JH1	P41
121VU	ENGINE/ENG1/FADEC B/AND EIU 1	4KS1	R41
49VU	ENGINE/1/FADEC A/AND EIU 1	2KS1	A04
49VU	ENGINE/1/FIRE DET/LOOP A	7WD1	A06
121VU	ENGINE/ENG1/FIRE DET/LOOP B	8WD1	Q38
122VU	ELEC/GCU/1	2XU1	T26
122VU	ANTI ICE/ENG/1	1DN1	X10
49VU	FUEL/LP VALVE/MOT1/ENG1	1QG	A08
121VU	FUEL/LP VALVE/MOT2/ENG1	3QG	M25
FOR FIN: 1000EM2 (ENGINE2)
121VU	ENGINE/IGN/ENG2/SYS A BAT	2JH2	P40
121VU	ENGINE/IGN/ENG2/SYS B	3JH2	P42
121VU	ENGINE/ENG2/FADEC B	4KS2	Q40
49VU	ENGINE/2/FADEC A/AND EIU 2	2KS2	A05
121VU	ENGINE/ENG2/FIRE DET/LOOP A	7WD2	Q39
49VU	ENGINE/2/FIRE DET/LOOP B	8WD2	A07
122VU	ELEC/GCU/2	2XU2	T27
123VU	Y HYD/ELEC/ELEC PUMP/NORM	3801GX	AB03
123VU	Y HYD/ELEC/PUMP	3802GX	AB06
121VU	HYDRAULIC/HYD POWER/Y	3803GX	N30
122VU	ANTI ICE/ENG/2	1DN2	W10
49VU	FUEL/LP VALVE/MOT1/ENG2	2QG	A09
121VU	FUEL/LP VALVE/MOT2/ENG2	4QG	M26

Subtask 71-00-20-865-068-A ** ON A/C NOT FOR ALL

WARNING: OPEN THE PROBE HEATER AND WINDOW HEATER CIRCUIT-BREAKERS BEFORE YOU OPEN THE PHC AND WHC CIRCUIT BREAKERS. IF YOU DO NOT OBEY THIS SEQUENCE:

THE PROBES WILL BECOME TOO HOT.
THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	ANTI ICE/PROBES/PHC/1	2DA1	D03
122VU	ANTI ICE/WHC/2	5DG2	W13
122VU	ANTI ICE/WHC/1	5DG1	X13
122VU	ANTI ICE/PROBES/PHC/3	2DA3	Y16
122VU	ANTI ICE/PROBES/PHC/2	2DA2	Y12

Subtask 71-00-20-864-050-A ** ON A/C NOT FOR ALL

E. Depressurize these Hydraulic Systems
(1) Put a WARNING NOTICE(S) in position to tell persons not to pressurize the applicable system.
(a) On the panel 40VU.
(b) On the ground service panel of the applicable hydraulic system.
(2) Depressurize the applicable hydraulic system (Ref. AMM TASK 29-10-00-864-001) or (Ref. AMM TASK 29-10-00-864-002).
(3) Depressurize the reservoir of the applicable hydraulic system (Ref. AMM TASK 29-14-00-614-001).

Subtask 71-00-20-010-050-A ** ON A/C NOT FOR ALL

F. Get Access
(1) Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(2) FOR [1000EM1] (ENGINE-1)
437AL, 438AR
(3) FOR [1000EM2] (ENGINE-2)
447AL, 448AR.
(4) Put the ACCESS PLATFORM 1M(3 FT) in position at engine level.

Subtask 71-00-20-040-050-A ** ON A/C NOT FOR ALL

G. Deactivate the Thrust Reverser

WARNING: MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

(1) Deactivate the thrust reverser Hydraulic Control Unit (HCU) (Ref. AMM TASK 78-30-00-040-012).

Hydraulic Control Unit ** ON A/C NOT FOR ALL

Subtask 71-00-20-010-051-A ** ON A/C NOT FOR ALL

H. Open the thrust reverser doors (Ref. AMM TASK 78-32-00-010-010) but do not release the pressure after you put the hold open rods in position.
(1) FOR [1000EM1] (ENGINE-1)
451AL, 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL, 462AR.

Subtask 71-00-20-480-050-A ** ON A/C NOT FOR ALL

I. Install the S889BH0 BRACE - HOLD OPEN COWLS or TMHBS13-00-00 BRACE-HOLD OPEN COWLS to Support the Fan and Thrust Reverser Cowl Doors

Fan Cowl and Thrust Reverser Braces ** ON A/C NOT FOR ALL

(1) Put the adjustable struts (1) and (2) in to position.
(2) Adjust the length of the struts so that they hold the weight of the thrust reverser halves.
(3) Put the thrust reverser half hold-open rods in their storage positions (Ref. AMM TASK 78-32-00-410-010).
(4) Open the valve on the hydraulic hand pump.
(5) Install the left and right support arms (4) so that they hold the weight of the fan cowls.

NOTE: The support arms (4) must be installed so that the brackets (3) are on the second latch from the front of the thrust reverser halves.

(6) Put the fan cowl hold-open rods in their storage positions (Ref. AMM TASK 71-13-00-410-010).

Subtask 71-00-20-680-050-A ** ON A/C NOT FOR ALL

J. Drain the Fuel that Stays in the Engine and the Pylon Fuel Hose, to Do this Drain at Level of the Fuel Filter as Follows:

NOTE: There is an alternative fuel drain procedure in step 4.K.(2) where the fuel can be drained from the bleeder plug (25) of the LP/HP fuel pump instead of the fuel cooled oil cooler. Only one of these procedures is required.

(1) Procedure to drain the fuel from the fuel cooled oil cooler drain plug
(a) Put a CONTAINER - CLEAN, APPLICABLE under the fuel filter.
(b) Removal of the lockwire

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.

1 Cut and discard the lockwire which safeties the fuel drain plug (7).

Fuel Drain Plug Location ** ON A/C NOT FOR ALL

NOTE: Do not put fuel that you drained from the engine back into the fuel system.

(d) Remove the seal ring (6) from the fuel drain plug (7). Discard the seal ring (6).
(e) Lubricate a new AIPC 73-12-42-80-070 SEALING RING (6) with clean V10-077lubricant (engine oil) and install it on the fuel drain plug (7) (Ref. AMM TASK 70-23-13-911-010).
(f) Install the fuel drain plug (7).
(g) TORQUE the fuel drain plug (7) to between 120 and 110 lbf.in (1.36 and 1.24 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(h) Installation of the lockwire

1 Safety the fuel drain plug with lockwire (Material No.V02-147) .
(2) Alternate fuel drain procedure from LP/HP fuel pump
(a) Put a CONTAINER - CLEAN, APPLICABLE under the LP/HP fuel pump.
(b) Removal of the lockwire

1 Cut and discard the lockwire which safeties the bleeder plug (25).

LP/HP Fuel Pump Bleeder Plug ** ON A/C NOT FOR ALL

NOTE: Do not put fuel that you drained from the engine back into the fuel system.

(d) Lubricate a new seal ring (24) (IPC-CSN 73-12-41-80A-XXX) with V10-077lubricant (engine oil) and install it on the bleeder plug (25).
(e) Install the bleeder plug on the HP/LP fuel pump.
(f) TORQUE the bleeder plug (25) to between 100 and 75 lbf.in (1.13 and 0.85 m.daN )

(Ref. AMM TASK 70-23-11-911-013).
(g) Installation of the lockwire

1 Safety the bleeder plug (25) with lockwire (Material No.V02-147) .

Subtask 71-00-20-020-051-A ** ON A/C NOT FOR ALL

K. Removal of the Components from the Right and the Left Sides of the Engine

CAUTION: AFTER REMOVAL OF THE COMPONENTS, USE TIE WRAPS TO ATTACH: - THE ENGINE STARTER DUCT - THE TAI DUCT, AND - ALL OTHER DUCTS OR COMPONENTS THAT IT IS NECESSARY TO ATTACH TO PREVENT ENTANGLEMENT AND DAMAGE DURING THE REMOVAL OF THE POWER PLANT. AFTER REMOVAL OF THE POWER PLANT, REMOVE THE TIE WRAPS.

(1) Remove the drains mast (Ref. AMM TASK 71-71-42-000-010).

NOTE: When you install the engine in the transportation stand it is only necessary to remove the drains mast to prevent damage. It is not necessary to disconnect the drain tubes or remove the collector plate assembly.

(2) Remove these components from the right side of the engine:

Power Plant, Right Side ** ON A/C NOT FOR ALL

(a) At the left-interface electrical junction-box:

Left Interface Junction Box ** ON A/C NOT FOR ALL

Disconnect electrical connectors 450VC, 452VC and 454VC.

(b) At the forward-pylon electrical junction-box:

Forward Junction Box ** ON A/C NOT FOR ALL

1 Cut and discard the lockwire safetying IDG harness connector 400VC and disconnect the connector.
2 Disconnect connectors 401VC, 403VC, 407VC and 409VC.
3 Disconnect connectors 402VC, 404VC, 405VC, 406VC, 408VC, 447VC, 448VC and 457VC.
(c) Disconnect electrical connector 4005VC located by the V groove on the fan case, at 1 o'clock, looking forward.

Power Plant, Right Side ** ON A/C NOT FOR ALL

(d) Remove the coupling (5) and disconnect the upper starter duct (4) from the pylon duct (6).

Forward Junction Box ** ON A/C NOT FOR ALL

(e) Remove the coupling (3) and disconnect the Thermal Anti-Ice duct (TAI) (2) located on the fan case close by the pylon from the pylon TAI duct (1).

Forward Junction Box ** ON A/C NOT FOR ALL

(3) Remove these components from the left side of the engine:

Power Plant, Left Side ** ON A/C NOT FOR ALL

Left Connectors Location ** ON A/C NOT FOR ALL

TAI Location and Hydraulic Reservoir Pressurization Tube Location ** ON A/C NOT FOR ALL

(a) Disconnect thrust-reverser harness connectors 4101KS-A and 4101KS-B from the thrust reverser Hydraulic Control Unit (HCU).
(b) Disconnect electrical connector 4004VC located by the V groove on the fan case, at 11 o'clock, looking forward.

Left Connectors Location ** ON A/C NOT FOR ALL

TAI Location and Hydraulic Reservoir Pressurization Tube Location ** ON A/C NOT FOR ALL

(d) Remove the coupling (7) and disconnect the cabin air duct (10).

TAI Location and Hydraulic Reservoir Pressurization Tube Location ** ON A/C NOT FOR ALL

CAUTION: DO NOT LET HYDRAULIC FLUID GO DOWN THE FAN CASE AND CONTACT THE SEAL RING BETWEEN THE FAN CASE AND THE ANGLE GEARBOX. REMOVE THE HYDRAULIC FLUID WITH A CLEAN LINT FREE CLOTH. THE HYDRAULIC FLUID CAN CAUSE DETERIORATION OF THE SEAL RING.

CAUTION: USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU DO NOT USE THE SECOND WRENCH, THERE IS A RISK THAT YOU WILL LOOSEN OR TIGHTEN THE UNION TOO MUCH.

(e) Disconnect the hydraulic tubes from the fluid disconnect panel:

Power Plant, Left Side ** ON A/C NOT FOR ALL

NOTE: If the check valve is loosened by error, we must replace the seal before re-torqueing it.

1 Disconnect the hydraulic suction hose (1).
2 Disconnect the hydraulic pressure tube (2).
3 Disconnect the hydraulic-pump case drain-tube (7).
4 Install the CAP - BLANKING on the hydraulic lines.
5 Clean any hydraulic fluid that may have leaked onto the fan case (Ref. AMM TASK 70-11-56-910-001).
(f) Disconnect the fuel tubes from the fluid disconnect panel:

Power Plant, Left Side ** ON A/C NOT FOR ALL

CAUTION: DO NOT LET FUEL GO DOWN THE FAN CASE AND CONTACT THE SEAL RING BETWEEN THE FAN CASE AND THE ANGLE GEARBOX. REMOVE THE FUEL WITH A CLEAN LINT-FREE CLOTH. THE FUEL CAN CAUSE DETERIORATION OF THE SEAL RING.

1 Cut and discard the lockwire which safeties the bolts attaching the tubes.
2 Remove the 4 bolts (6) and washers (5) and disconnect the fuel return to the tank tube (4). Remove and discard the gasket (3).
3 Remove the 4 bolts (9) and washers (10) and disconnect the fuel supply tube (8). Remove and discard the gasket (11).
4 Install the CAP - BLANKING on the fuel lines.
5 Clean any fuel that may have leaked onto the fan case (Ref. AMM TASK 70-11-56-910-001).
(g) Disconnect the sensor tubes from the bracket situated forward of the pylon:

TAI Location and Hydraulic Reservoir Pressurization Tube Location ** ON A/C NOT FOR ALL

1 Disconnect the Pressure Regulating Valve (PRV) sensor tube (20).
2 Disconnect the thermostat sensor tube (11).
(h) On engine 1 only, disconnect the hydraulic reservoir pressurizing-tube located on the combustor case at 11 o'clock (Ref. AMM TASK 29-14-49-000-001).

TAI Location and Hydraulic Reservoir Pressurization Tube Location ** ON A/C NOT FOR ALL

Subtask 71-00-20-020-070-A ** ON A/C NOT FOR ALL

L. Removal of the Bleed Pressure Regulator Valve (PRV) Sense Line.
(1) Remove the sense line between the bleed pressure regulator valve (PRV) and the pylon interface (Ref. AMM TASK 36-11-49-000-016).

Subtask 71-00-20-620-050-A ** ON A/C NOT FOR ALL

M. Install CAP - BLANKING to all openings and connectors.

4. Procedure
Subtask 71-00-20-020-052-A ** ON A/C NOT FOR ALL

A. Loosen the Forward Engine Mount Bolts

Forward Engine Mount ** ON A/C NOT FOR ALL

CAUTION: LOOSEN ONLY ONE BOLT AT A TIME. MAKE SURE THE BOLT IS TIGHT BEFORE THE SUBSEQUENT BOLT IS LOOSENED.

(1) Remove the nuts (15), the washers (14) and (10), the bolts (9) and remove the retainers (13) and (11).
(2) Loosen one forward mount bolt (18) and TORQUE it again to between 1584 and 1056 lbf.in (17.90 and 11.93 m.daN )

(Ref. AMM TASK 70-23-11-911-013) or the maximum load that a mechanic can apply with a standard wrench.
Apply the same procedure for each of the other three bolts (18) in turn.

Subtask 71-00-20-020-061-A ** ON A/C NOT FOR ALL

B. Remove the center bolt (1)
(1) Cut and discard the lockwire which safeties the center bolt (1) of the mount.
(2) Remove the center bolt (1) and the washer (2) with the 98D71203001000 CHEST,TORQUE SET-ENGINE R I.

Subtask 71-00-20-480-051-A ** ON A/C NOT FOR ALL

C. Installation of the support equipment:
(1) Install the 98D71203501000 BOOTSTRAP SYSTEM.

Bootstrap Installation ** ON A/C NOT FOR ALL

Bootstrap Installation Manual Hoist Kit ** ON A/C NOT FOR ALL

Bootstrap Installation Electrical Hoist Kit ** ON A/C NOT FOR ALL

(a) Put the rear beam (9) in position on the lower part of the pylon and install the pins (8).
(b) If the bootstrap is equipped with a spacer:
1 Install the spacer (10) on the pylon.
(c) Install the center hinge clamp (6).
(d) Install the clamps (7).
(e) Put the forward hinge arms (4) and (5) in position and install the pins (3).
(f) Make sure that the forward hinge arms (4) and (5) are and remain in the horizontal position. To do this use the spirit levels installed on the arms.
(g) Install the link (2) and secure with the pins (1).
(h)

Bootstrap Installation ** ON A/C NOT FOR ALL

Bootstrap Installation Manual Hoist Kit ** ON A/C NOT FOR ALL

a Put the dynamometers (4) and the clamps (3) in position on the forward hinge arms (1) and (7) and the rear beam (8).
b Install the pins (2), the clamps (3) and the dynamometers (4) on the bootstrap system.
c Install the four chain pulley blocks (5).

or

2

Bootstrap Installation Electrical Hoist Kit ** ON A/C NOT FOR ALL

a Put the dynamometric shackle (4) and the clamps (3) in position on the forward hinge arms (1) and (7) and the rear beam (9).
b Install the pins (2), the clamps (3) and the dynamometric shackle (4) on the bootstrap system.
c Install the four electrical hoist (5) and make sure that the dynamometers or that the electrical motors are installed outboard of the engine.
(2) Install the S487ETT2 ENGINE TROLLEY or the TMHET06-00-00 TRAILER,ENGINE GROUND HANDLING.

Engine Handling Points ** ON A/C NOT FOR ALL

(a) Put in position the engine trolley and the S1787CR ENGINE CRADLE or the TMHEC29-00-00 CRADLE,V2500 ENGINE assembly from forward to aft, below the engine.
(b) Attach the chain hooks (6) to the engine cradle.
(c) Remove the pins which attach the engine cradle to the engine trolley.
(d) Lift the engine cradle to the engine with the four hoists.
(e) Install the pins of the front fixtures into the engine handling points and then install the rear support on the left and right sides. Attach to the engine with a ball pin.
1 Use the hoists to align the engine cradle with the engine.
(f) Operate the handling hoists at the same time until these values show on the dynamometers (4) (for the manual hoist kit) or on the service desk display (8) (for the ALT71000001 ELECTRICAL HOIST KIT, refer to the user's guide):
1 1900 -100 daN or +150 daN (4271 -225 lbf or +337 lbf) 1936 kg (4268 lb) for the forward hoists.
2 500 -50 daN or +100 daN (1124 -112 lbf or +225 lbf) 509 kg (1122 lb) for the aft hoists.

NOTE: These values are applicable to the demountable power plant which includes the engine assembly, air inlet cowl and Common Nozzle Assembly (CNA).

Subtask 71-00-20-020-050-A ** ON A/C NOT FOR ALL

D. Removal of the Power Plant

WARNING: BEFORE YOU REMOVE OR INSTALL THE POWER PLANT, MAKE SURE THAT ALL PERSONNEL IS AWAY FROM THE AIRCRAFT. THE POWER PLANT WEIGHS APPROXIMATELY 7300 POUNDS. IF IT FALLS ON PERSONS, INJURY OR DEATH CAN OCCUR.

WARNING: DO NOT TOW OR MOVE THE AIRCRAFT ON THE GROUND IF THE THRUST REVERSER IS ON THE PYLON WITH THE ENGINE REMOVED. MOVEMENT OF THE AIRCRAFT CAN CAUSE DAMAGE TO THE PYLON OR THE THRUST REVERSER.

CAUTION: DO NOT LET THE FORWARD ENGINE MOUNT FALL ON TO THE ENGINE WHEN THE BOLTS ARE REMOVED. THE VSV UNISON RINGS, HARNESSES AND TUBES CAN BE EASILY DAMAGED IF THE FORWARD MOUNT FALLS. PUT PADDING BETWEEN THE ENGINE AND THE FORWARD MOUNT BEFORE THE BOLTS ARE REMOVED.

CAUTION: IF YOU MUST CLOSE THE ENGINE COWLS WHEN THE ENGINE IS NOT INSTALLED, BE CAREFUL WITH THE THRUST REVERSER COWLS. IF THE COWLS CLOSE TOO FAR, THERE IS A RISK OF DAMAGE TO HINGE N°4.

CAUTION: DURING THE REMOVAL OF THE POWER PLANT, ONE PERSON MUST STAY ON EACH SIDE AT THE FRONT OF THE ENGINE TO MAKE SURE THAT THE COMPONENTS DO NOT TOUCH.

(1) Disconnect the forward engine mount (4):

Forward Engine Mount ** ON A/C NOT FOR ALL

(a) Put the padding between the engine and the forward engine mount (4).
(b) Remove the nuts (16), retainers (12), washers (17) and bolts (18) which attach the forward engine mount (4) to the pylon (3).
(c) Remove the nut (8), washer (7), retainer (6) and nut (5).
(2) Disconnect the aft engine mount (4):

Aft Engine Mount ** ON A/C NOT FOR ALL

(a) Remove the lockwire:

1 Cut and discard the lockwire that safeties the bolts (2).
(b) Remove the bolts (2), washers (3), barrel nuts (6) and retainers (7) that attach the aft engine mount (4) to the pylon (1).
(3) Make sure that no lines or unions stay connected to the pylon.
(4) Apply or install protections on the engine air ducts and attach the engine air ducts to the pylon section.
(5) Set the pulley lock levers to the DOWN position.
(6) Carefully lower the engine with the four hoists at the same time:
(a) Make sure that you do not cause dynamic effects during the descent.
(b) Make sure that the pylon and the engine mount mating-faces stay parallel to let you disengage the shear pins easily.
(c) Use the level indicators on the forward hinge arms of the bootstrap to keep the hinge arms in the horizontal position.
(d) Put the aft part of the engine cradle in position on the trolley before the front part.
(7) Install the pins on the engine trolley to lock the engine cradle.
(8) Remove the four hoists from the engine cradle.
(9) Remove the forward hinge arms from the bootstrap system:
(a)

Bootstrap Installation Electrical Hoist Kit ** ON A/C NOT FOR ALL

Bootstrap Installation Manual Hoist Kit ** ON A/C NOT FOR ALL

(b)

Bootstrap Installation ** ON A/C NOT FOR ALL

(10) In the fire bulkhead area, do an inspection of the anti-ice pylon duct (21) (with the castellated flange and the full flanges) and the pylon housing (22) for signs of damage:

Anti-Ice Pylon Duct ** ON A/C NOT FOR ALL

(a) Make sure that there are no disengaged metal seals (23).
(b) If you find disengaged metal seals (23) out of the duct flanges, replace the duct.
(c) If the castellated flange (in the core area) and the full flanges (in the fan area) are twisted, bent or if they have cracks then, remove the duct and replace the flange(s).
(d) If there are other types of damage (nicks, gauges, scratches) on the anti-ice pylon duct (21) or the pylon housing (22), refer to the Duct and Fuel Pipe Repair Manual (DFPRM).
(e) Use the MIRROR - INSPECTION and/or the BORESCOPE DIA 6 MM (0.2 IN.) MAX - SIDE VIEW FLEXIBLE to do the inspection.
(11) Do a detailed inspection of the forward pylon fire-seal (U-shaped) for:

Wear
Degradation
Loose sides
Cracks, and
Missing sections.

(a) If you find damage on the forward pylon fire-seal (U-shaped), replace it (Ref. AMM TASK 54-57-22-000-004) and (Ref. AMM TASK 54-57-22-400-004).

[Rev.10 from 2021] 2026.04.01 02:28:28 UTC