D.
Prepare to Repair the Bullnose Seal.
S 048-004-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 thrust reverser for ground maintenance (AMM 78-31-00/201).
S 018-000-N00
(2)
Open the fan cowl panels (AMM 71-11-04/201).
S 018-034-N00
(3)
Open the core cowl panels (AMM 71-11-06/201).
S 018-035-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.
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(4)
Open the thrust reverser (AMM 78-31-00/201).
E.
Repair the Bullnose Seal (Fig. 803, 804)
NOTE: You can replace the bullnose seal with the translating sleeve
____
removed or attached.
S 028-036-N00
WARNING: DO NOT PUT YOUR WEIGHT ON THE THRUST REVERSER THAT IS KEPT OPEN
_______ WITH A HOLD-OPEN ROD ONLY. YOUR WEIGHT CAN CAUSE THE FAILURE OF THE HOLD-OPEN ROD. THE THRUST REVERSER HALVES CAN FALL CLOSED QUICKLY, WHICH CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(1)
Remove the seal retainer bolts.
S 028-037-N00
(2)
Remove the bullnose seal.
S 348-038-N00
(3)
Repair the bullnose seal:
(a) Use a knife and cut through the bullnose seal to remove the damaged piece.
NOTE: The the shape of the bullnose seal is a half of a circle
____ (180 degrees). Use bullnose seal replacements at approximately 30 degree increments (30, 60, 90, 120, 150). Also, the splice must be made so that the splice butt-joints are halfway between adjacent fasteners.
(b)
Lightly sand the cut edges of the bullnose seal to remove any unwanted material.
(c)
Make sure the new piece is a correct fit.
WARNING:_______AVOID SKIN AND EYE CONTACT WITH THE SOLVENT. MAKE SURE YOU HAVE ADEQUATE VENTILATION. FAILURE TO COMPLY CAN CAUSE INJURY TO PERSONS.
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A
CASCADE VANE SEGMENT
A
SEE A BULLNOSE FAIRING TORQUE BOX
SEGMENT CASCADE VANE THRUST REVERSER TORQUE BOX TRANSLATING SLEEVE 1 23 DEGREE POSITION REVERSER OPEN TO THE A
1 TRANSLATING SLEEVE DEPLOYED 4-6 INCHES BULLNOSE FAIRING A-A BULLNOSE SEAL BLOCKER DOOR
Bullnose Fairing and Seal Repair Figure 803
C70578
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BULLNOSE SEAL REPAIR SPLICE
Bullnose Seal Repair
Figure 804
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本文链接地址：747-400 AMM 飞机维护手册 EXHAUST 1(21)
