# SDR UALA2011102105697

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2011
- Submitted: October 27, 2011
- Operation: Air carrier
- Aircraft: [N182UA](https://openairdocs.org/aircraft/N182UA), registered now
- Make and model: Boeing 747422
- Aircraft serial: 25279
- Aircraft time: 84,800 hours, 10,322 cycles
- Engine: Pwa PW4056
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Actuator
- Part number: 550030019
- Part serial: 1633136
- Condition: Failed
- Location: Lt Aileron
- Stage of operation: NR
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011102105697

## Discrepancy

'AILERON LOCKOUT' EICAS ADVISORY MSG  ILLUMINATED DURING DESCENT AT 10000FT.  LT AILERON LOCKOUT ACTUATOR FAILED CMC GROUND TEST AFTER REPLACEMENT. OPS CHECKED FAILED.  REPLACED ACTUATOR, OPS CHECKED GOOD.

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