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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(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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