# SDR UALA2009042101158

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 18, 2009
- Submitted: April 22, 2009
- Operation: Air carrier
- Aircraft: [N542UA](https://openairdocs.org/aircraft/N542UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25276
- Aircraft time: 58,952 hours, 21,625 cycles
- Engine: Pwa PW2037
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cockpit
- Stage of operation: IN
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2009042101158

## Discrepancy

BURNING ODOR IN COCKPIT LINGERING AFTER PACKS TURNED ON.  ODOR FROM LT PACK ONLY.  ODOR DISSIPATED AFTER 20 MINUTES GROUND OPS.  NO HISTORY.  NO FURTHER INCIDENTS NOTED.

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