# SDR UALA2012092105353

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 20, 2012
- Submitted: September 28, 2012
- Operation: Air carrier
- Aircraft: N174UA
- Make and model: Boeing 747422
- Aircraft serial: 24381
- Aircraft time: 88,401 hours, 9,867 cycles
- Engine: Pwa PW4056
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Actuator
- Part number: 550030019
- Part serial: 9
- Condition: Faulty
- Location: Rt Aileron
- Stage of operation: IN
- 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/UALA2012092105353

## Discrepancy

AILERON LOCKOUT.  REPLACED RIGHT OUTBOARD AILERON LOCKOUT ACTUATOR PER MM AND RE-RACKED LEFT STAB TRIM RR MODULE.  TEST OK PER MM 27-11-00, EICAS MSG CLEARED.  REPLACE RIGHT OUTBOARD AILERON LOCKOUT ACT PER MM 27-11-16.

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