# SDR UALA2011111406181

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2011
- Submitted: December 8, 2011
- Operation: Air carrier
- Aircraft: [N544UA](https://openairdocs.org/aircraft/N544UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25322
- Aircraft time: 75,358 hours, 21,733 cycles
- Engine: Pwa PW2037
- System (JASC): [2320 · Data Transmission Auto Call](https://openairdocs.org/jasc/2320)
- Part: Amu
- Part number: 6228910109
- Part serial: 616
- Condition: Faulty
- Location: Acars
- Stage of operation: IN
- 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/UALA2011111406181

## Discrepancy

ACARS NO COMM.  RESET BREAKER, NO HELP.  REPLACED ACARS MANAGEMENT UNIT M172 PER AMM, OPS CHECK NORMAL.

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