# SDR UALA2012082004628

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 17, 2012
- Submitted: October 1, 2012
- Operation: Air carrier
- Aircraft: [N777UA](https://openairdocs.org/aircraft/N777UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26916
- Aircraft time: 70,190 hours, 12,670 cycles
- Engine: Pwa PW4077
- System (JASC): [3140 · Central Computers](https://openairdocs.org/jasc/3140)
- Part: Module
- Part number: S243W0011601
- Part serial: 12
- Condition: Faulty
- Location: Nr 1
- 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/UALA2012082004628

## Discrepancy

"FMC L" STATUS MESSAGE DISPLAYED.  FOUND AS SOC MAINT MSG 31-51023.  NEEDS CPM-ACMF PER MAINT TASK FAULT ISOLATION PROCEDURE.  REPLACED CPM-ACMF IAW AMM.

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