Service difficulty report · Bolt · Boeing 7472D7B

Difficulty date
April 16, 2008
Submitted
April 30, 2008
Operation
Air carrier
Aircraft
N526MC
Make and model
Boeing 7472D7B
Aircraft serial
22337
Aircraft time
96,469 hours, 19,818 cycles
Part
Bolt
Condition
Sheared
Location
Trunnion
Component
Trunnion
Component part number
65B0776911
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

FORWARD UPPER TRUNNION NUT LOCKING PLATE BOLTS SHEARED AND TRUNNION NUT REQUIRES TORQUE CHECK SUSPECT MOVEMENT IN HOUSING. TRUNNION HOUSING REMOVED AND REPLACED IAW AMM 57-43-01/ 401 AND 32-11-19. ALL FIT CLEARANCES AND NDT OF PINS SATISFACTORY PER BSOPM 20-20-01. HOUSING ATTACHMENT BRACKETS NDT IAW D6-7170 PART 6 51-00-00, NO CRACKS EVIDENT. GEAR RETRACTION AND EXTENSION PERFORMED.

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