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 air tube to the bracket with the bolts, washers, and nuts. 14) Tighten the bolts. 15) Lubricate the threads of the screws, which attach the tube
 clamps on the support for the engine fire detector element, with engine oil.
 16) Attach the tube clamps on the support for the engine fire detector element to the support bracket of the accessory cooling air tube with the screws, washers, and nuts. a) Tighten the screws.
 F. Return the Aircraft to its Usual Condition
 S 414-124-N00
 WARNING: OBEY THE INSTRUCTIONS IN AMM 78-31-00 WHEN YOU CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
 (1)  
Close the right thrust reverser (AMM 78-31-00/201).

 S 414-125-N00

 (2)  
Close the right core cowl panel (AMM 71-11-06/201).

 S 414-126-N00

 (3)  
Close the right fan cowl panel (AMM 71-11-04/201).

 S 444-127-N00

 (4)  
Do the activation procedure for the thrust reverser
 (AMM 78-31-00/201).

 

 TASK 75-24-02-404-060-N00
 8. Install the No. 3 Turbine Vane Cooling Air Duct (Fig. 402)
_______________________________________________
 A. Equipment
 (1)  M303, M305, or M307 Bergen Mechanical Crimper
 Bergen Cable Technologies Inc
 170 Gregg St

 P.O.
 Box 1300
 Lodi, NJ 07644-9982

 B.
Consumable Materials

 (1)  
D00390 Oil - Engine

 (2)  
Wax - Paraffin, PMC 9552

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 75-24-02
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
(3)  
G02334 Lockwire - AS3214-02

 (4)  
G02332 Ferrule - P05-292 (Optional)

 (5)  
G02335 Cable - Safety - P05-291 (Optional)

 C.
References

 (1)  
AMM 71-11-04/201, Fan Cowl Panels

 (2)  
AMM 71-11-06/201, Core Cowl Panels

 (3)  
AMM 78-31-00/201, Thrust Reverser System

 (4)  
IPC 71-00-50 Fig.1

 (5)  
IPC 75-24-07 Fig. 1

 D.
Access

 (1)  
Location Zone
 412 Engine 1 - Aft HPC Case to Fwd HPT Case
 422 Engine 2 - Aft HPC Case to Fwd HPT Case
 432 Engine 3 - Aft HPC Case to Fwd HPT Case
 442 Engine 4 - Aft HPC Case to Fwd HPT Case

 (2)  
Access Panel
 415 Left Thrust Reverser Half - Engine 1
 425 Left Thrust Reverser Half - Engine 2
 435 Left Thrust Reverser Half - Engine 3
 445 Left Thrust Reverser Half - Engine 4

 E.
Procedure

 S 424-171-N00
 (1)  Install the No.3 turbine-vane cooling air-duct:
 (a)  
Remove the protection caps from the TVC air duct, and the openings on the HPC and HPT cases.

 (b)  
ENGINES WITHOUT PHASE 3 CHANGES AND PRE-PW-SB 72-315; Install the new metering orifice seal plate, convex side out, on the HPC case boss.

 (c)  
ENGINES WITH PHASE 3 CHANGES AND POST-PW-SB 72-315; Use the paraffin wax and attach a new gasket on the HPC case boss.

 (d)  
ENGINES WITHOUT PHASE 3 CHANGES AND PRE-PW-SB 72-315 OR POST-PW-SB 75-57; Use the paraffin wax and attach a new gasket on the HPT boss.

 (e)  
ENGINES WITH PHASE 3 CHANGES OR POST-PW-SB 72-315 OR PRE-PW-SB 75-57; Install a new metering orifice seal plate, convex side out, on the boss on the HPT case.

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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
1)  Attach the plate with paraffin wax.
 (f)  
Put the TVC air duct to the pads on the HPC and HPT bosses.

 (g)  
Lubricate the threads of the bolts, which attach the TVC air duct, with engine oil.
　
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