# SDR USAA2012011300015

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 10, 2012
- Submitted: January 13, 2012
- Operation: Air carrier
- Aircraft: [N441US](https://openairdocs.org/aircraft/N441US), registered now
- Make and model: Boeing 737-4B7
- Registry model: [Boeing 737-4B7](https://openairdocs.org/model/boeing-737-4b7) (OpenAirDocs)
- Aircraft serial: 24812
- Aircraft time: 56,936 hours, 39,366 cycles
- System (JASC): [2750 · Trailing Edge Flap Control System](https://openairdocs.org/jasc/2750)
- Part: Bolt
- Condition: Broken
- Location: Flap Track
- Stage of operation: NR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAA2012011300015

## Discrepancy

CREW REPORTED THAT THE AIRCRAFT REQUIRES 2.5 UNITS OF RUDDER TRIM TO THE LEFT. (FLAPS 40 DEGREES, FUEL BALANCED AILERON TRIM 0 BALL IN CENTER)  NOTE: AT CRUISE, RUDDER TRIM 0.  MAINTENANCE REPLACED BROKEN AND MISSING BOLT AT NR 3 AFT OUTBOARD FLAP TRACK PER AMM 27-51-39.  OPS CHECK GOOD.

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