# SDR UALA2009031000410

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2009
- Submitted: May 4, 2009
- Operation: Air carrier
- Aircraft: N552UA
- Make and model: Boeing 757222
- Aircraft serial: 26641
- Aircraft time: 64,816 hours, 18,640 cycles
- Engine: Pwa PW2037
- System (JASC): [4920 · APU Core Engine](https://openairdocs.org/jasc/4920)
- Part: Apu
- Part number: 380029817
- Part serial: 61376
- Condition: Smoke
- Stage of operation: IN
- How discovered: V
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009031000410

## Discrepancy

EXCESSIVE SMOKE FROM APU TAILPIPE.  REPLACED APU, OPS AND LEAK CHECKS NORMAL.

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