# SDR QPR2007F00000

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 8, 2007
- Submitted: November 29, 2007
- Operation: Air carrier
- Aircraft: [N614PA](https://openairdocs.org/aircraft/N614PA), registered now
- Make and model: Boeing 727227
- Aircraft serial: 20738
- Engine: Pwa JT8D9A
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Condition: Contaminated
- Location: Radio Rack
- Stage of operation: TX
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QPR2007F00000

## Discrepancy

PRIOR TO DEPARTURE,  SMELLED SOMETHING LIKE PAPER BURNING.  CHECKED THE E/E COMPARTMENT AND OBSERVED COOLING FAN WAS SHUTOFF.  COULD NOT LOCATE SOURCE OF SMOKE AND ALL SYSTEMS OPERATED NORMALLY.  TEST FLEW AIRCRAFT, OK.  LATER, FOUND A BIRD NEST IN THE RADIO RACK COOLING FAN EXIT DUCT AND REMOVED SAME.  REPLACED RADIO RACK COOLING FAN PRECAUTIONARY.  (K)

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