# SDR 2008UALA00027

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 2008
- Submitted: March 17, 2008
- Operation: Air carrier
- Aircraft: [N779UA](https://openairdocs.org/aircraft/N779UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26941
- Aircraft time: 46,076 hours, 8,647 cycles
- Engine: Pwa PW4077
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Pcu
- Part number: 251W12001
- Condition: Faulty
- Location: Aileron
- Stage of operation: IN
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2008UALA00027

## Discrepancy

THE "FLIGHT CONTROLS" EICAS APPEARED AFTER ENGINE START.  SUSPECT AILERON POWER CONTROL UNIT.  REPLACED LT INBOARD AILERON PCU PER MM 27-11-11.  ACP'D MAT CKS AND ADJUSTMENTS.  RAN ENGINES, NO MSG'S DISPLAYED OR ACTIVE.  AC OK FOR SERVICE.

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