# SDR UALA2011082604573

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2011
- Submitted: September 6, 2011
- Operation: Air carrier
- Aircraft: [N214UA](https://openairdocs.org/aircraft/N214UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 30220
- Aircraft time: 39,506 hours, 8,564 cycles
- Engine: Pwa PW4077
- System (JASC): [2211 · Autopilot Computer](https://openairdocs.org/jasc/2211)
- Part: Computer
- Part number: 8220006103
- Part serial: 8392
- Condition: Faulty
- Location: Autopilot Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011082604573

## Discrepancy

LEFT AUTO PILOT FAILED IN-FLIGHT.  R AUTO PILOT PREVIOUSLY DEFERRED.  CREW CONTINUING TO SFO.  SAMC PATCHED IN, CB RESETS UNSUCCESSFUL.  DESCENDING TO FL280 NON-RVSM AIRSPACE.  REPLACED LEFT & RIGHT AFDC REF MM. TESTS GOOD.

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