757 动力装置安装手册 Powerplant Buildup Manual(109)

(3)
O-rings:

(a)  O-rings should not be used again.

(4)  
Brackets:

(a)  
Cracks:
1) Not permitted.

(b)  
Scratches, nicks, pits, scoring: 1) Permitted up to 5% of the original thickness. Blend smoothly to 63RA finish.

(c)  
Deformation:
1) Not permitted.

(5)  
Pneumatic ducts:

(a)  Refer to CMM 36-10-05 for inspection and repair information.

(6)  
Hoses:

(a)  
Hoses that include fire shielding (hydraulic hoses): 1) Visually examine the hose for damage. If damage is found, refer to AMM 20-10-10/201

for inspection and repair information. 2) Damage to the fire protection shielding is not permitted.

(b)  
Hoses that do not include fire shielding (IDG oil cooling hoses and pneumatic hoses):

1) Visually examine the hose for damage. If damage is found, refer to AMM 20-10-10/201 for inspection and repair information.
(7)  
Tubes:

(a)  Refer to AMM 20-10-09/401 for inspection and repair information.

(8)
Line Replaceable Units (LRU) (IDG, hydraulic pump, pilot controller, fire detectors, etc.):

(a)  Refer to the applicable CMM for inspection and repair information.
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(9)
Structural parts (forward and aft engine mounts, primary exhaust):

(a)  Refer to the applicable CMM for inspection and repair information.

(10)  
Wire Harnesses:

(a)  
For vendor wire harnesses (such as those owned by the engine manufacturer), refer to the applicable vendor CMM for inspection and repair information.

(b)  
For Boeing harnesses, refer to the Standard Wiring Practices Manual for inspection and repair information.

(11)  
Aluminum foil markers:

(a)  Refer to AMM 20-10-14/401 for inspection and replacement information.
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