(d)
Open the thrust reverser to the 45 degree position (AMM 78-31-00/201).
(e)
Examine the transfer dye (petroleum jelly) on the fire seal.
1) Make sure the width of the transfer dye (petroleum jelly) is a minimum of 0.25 inch (6.35 mm) along the full length of the fire seal.
2) If the width of the transfer dye (petroleum jelly) is less than 0.25 inch (6.35 mm), remove or install shims on the thrust reverser hinges (AMM 78-31-01/401).
3) Clean the petroleum jelly from the fire seal and the strut.
G. Put the Airplane Back to its Usual Condition
S 418-019-N00
WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO CLOSE THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(1)
Close the thrust reversers (AMM 78-31-00/201).
(2)
Close the core cowl panels (AMM 71-11-06/201).
S 418-020-N00
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S 418-022-N00
(3)
Close the fan cowl panels (AMM 71-11-04/201).
S 448-021-N00
(4)
Do the activation procedure for the thrust reversers (AMM 78-31-00/201).
TASK 78-00-00-358-027-N00
3. Repair the Vertical Blade Seal
______________________________
A. Standard Tools and Equipment
(1)
Knife - Xacto
B.
Consumable Materials
(1)
A00231 - Adhesive, RTV 174 or RTV 102, General
Electric
(2)
G00033 - Cheesecloth, Woven Class A, BMS 15-5B
(3)
G00320 - Glasscloth, Fabric Style 120, type D
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
D.
Access
(1)
Location Zone 415 and 416 Engine 1 - Thrust Reverser Halves 425 and 426 Engine 2 - Thrust Reverser Halves 435 and 436 Engine 3 - Thrust Reverser Halves 445 and 446 Engine 4 - Thrust Reverser Halves
E.
Prepare to Repair the Vertical Blade Seals.
S 048-024-N00
WARNING: DO THE DEACTIVATION PROCEDURE TO PREVENT THE OPERATION OF THE
_______ THRUST REVERSER. THE ACCIDENTAL OPERATION OF THE THRUST REVERSER CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(1)
Do the deactivation procedure for the thrust reverser for ground maintenance (AMM 78-31-00/201).
(2)
Open the fan cowl panels (AMM 71-11-04/201).
(3)
Open the core cowl panels (AMM 71-11-06/201).
S 018-023-N00
S 018-025-N00
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES/MAINTENANCE MANUAL ////////////////////////
S 018-026-N00
WARNING: OBEY THE INSTRUCTIONS IN THE PROCEDURE TO OPEN THE THRUST
_______ REVERSERS. IF YOU DO NOT OBEY THE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(4)
Open the thrust reverser (AMM 78-31-00/201).
F.
Repair the Vertical Blade Seal (Fig. 802)
S 358-043-N00
(1)
Find the vertical blade seals that are necessary to repair.
S 358-044-N00
(2)
With a sharp knife, cut away and remove the damaged seal section.
NOTE:____You can replace all of the vertical blade seals. You can also make a splice where the seal has damage.
S 358-027-N00
(3) If you will make a splice in the vertical blade seal, do these steps:
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