# SDR UALA2012082104672

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 20, 2012
- Submitted: August 31, 2012
- Operation: Air carrier
- Aircraft: [N544UA](https://openairdocs.org/aircraft/N544UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25322
- Aircraft time: 78,209 hours, 22,543 cycles
- Engine: Pwa PW2037
- System (JASC): [3140 · Central Computers](https://openairdocs.org/jasc/3140)
- Part: Dau
- Part number: 9670205001
- Part serial: 135
- Condition: Faulty
- Location: Cockpit
- Stage of operation: NR
- 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/UALA2012082104672

## Discrepancy

AIRCRAFT IS NOT SENDING ECM DATA.  DFDAU NEEDS TO BE REPLACED.  REPLACED DFDAU, AND LOADED SOFTWARE.

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