# SDR UALA2011082404544

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 24, 2011
- Submitted: September 16, 2011
- Operation: Air carrier
- Aircraft: [N771UA](https://openairdocs.org/aircraft/N771UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26932
- Aircraft time: 63,651 hours, 11,679 cycles
- Engine: Pwa PW4077
- System (JASC): [3140 · Central Computers](https://openairdocs.org/jasc/3140)
- Part: Module
- Part number: S243W0011601
- Part serial: 29
- Condition: Faulty
- Location: Brake System
- Stage of operation: NR
- 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/UALA2011082404544

## Discrepancy

FMC-L EICAS ADV MSG.  L FMC FAIL SEVERAL RESETS AND AIMS RESET CARRIED OUT NIL HELP.  L AIMS AMCF MODULE HAS NO DATA.  L FMC TO DF.  MEL 3461A APPLIED.  -INF- :MAINT MSGS 31-51023 AND 31 -51301 BOTH FAULT CPM-ACMF M002 IN LEFT AIMS, RECOMMEND REPLACE M002 MR31418 PCN 483-9052 AND RELOAD SOFTWARE.  PLZ WORK FMC DF424 AND ACMF DF423 TOGETHER.  REPLACED LEFT ACMF PER MM.

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