# SDR UIEA200800159

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 16, 2008
- Submitted: April 30, 2008
- Operation: Air carrier
- Aircraft: N526MC
- Make and model: Boeing 747-2D7B
- Registry model: [Boeing 747-2D7B](https://openairdocs.org/model/boeing-747-2d7b) (OpenAirDocs)
- Aircraft serial: 22337
- Aircraft time: 96,469 hours, 19,818 cycles
- System (JASC): [5743 · Wing, Landing Gear Attach Fittings](https://openairdocs.org/jasc/5743)
- 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
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200800159

## Discrepancy

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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