# SDR CALA2025021002256

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 8, 2025
- Submitted: February 10, 2025
- Operation: Air carrier
- Aircraft: [N37525](https://openairdocs.org/aircraft/N37525), registered now
- Make and model: Boeing 737-9
- Registry model: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (OpenAirDocs)
- Aircraft serial: 64500
- Aircraft time: 13,702 hours, 4,605 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- Stage of operation: IN
- How discovered: 9
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2025021002256

## Discrepancy

BURNING SMELL ON FLT  DECK AFTER REPORT FROM GROUND.  NO SMOKE O BSVD. REF LOGPAGE 3812980. DUE TO APU AUTO SHUTDOWN. APPLIED FIM 21-00/830 STEP K.  FAULT ISOLATION PROCEDURE (APU). NO SMELL FUMES OR SMOKE NOTED. OK FOR SERVICE PER FIM.

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