# SDR CALA2025042404181

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2025
- Submitted: April 24, 2025
- Operation: Air carrier
- Aircraft: [N35407](https://openairdocs.org/aircraft/N35407), registered now
- Make and model: Boeing 737924
- Aircraft serial: 30124
- Aircraft time: 64,430 hours, 26,848 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Cabin
- 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/CALA2025042404181

## Discrepancy

CREW REPORTS FUMES IN THE CABIN. SECOND WRITEUP. SMOKE / ODOR QUESTIONAIRE,  BY FLIGHT CREW. ACP CHECK OF ROW 9DEF POWER OUTLETS, FOUND SECURE AND PRODUCING POWER . CHECKED APU OIL PER TOMC, OIL WAS NOT OVER SERVICED. ACP'D SMOKE ODOR IN CABIN CK REF AMM 05-51-26-800-801-C1 . ALL STEPS DONE INCLUDING ENG RUNS , APU AND PACK BLEED RUNS. FOUND NO EVIDENCE OF OIL BURNING SMELL OR ELECTRICAL BURNING SMELL ALL SYSTEMS CHECKED IN AMM 05-51-26 CHECK GOOD. RECIRCULATION FILTERS NEED TO BE REPLACED NON STOCK LASMM SEE LOG PAGE 4584298 FOR FILTER DISPOSITION.

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