# SDR CALA2026091119367

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2026
- Submitted: September 11, 2026
- Operation: Air carrier
- Aircraft: [N33209](https://openairdocs.org/aircraft/N33209), registered now
- Make and model: Boeing 737824
- Aircraft serial: 30581
- Aircraft time: 78,487 hours, 29,582 cycles
- Engine: Cfmint CFM567B262
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Part number: P199753
- Condition: Odor
- Location: Zone 100
- Stage of operation: NR
- 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/CALA2026091119367

## Discrepancy

C/P AND F/O REPORTED ODOR IN FLIGHT DECK. ENTERING FLIGHTDECK NO SMELL OF ODOR AFTER GETTING TO GATE UNABLE TO RUN PACK 1 LONG ENOUGH TO VERIFY ODOR DOES NOT RETURN, PER AMM TASK 05-51-26-800-801-C1, AS PACK 1 IS CURRENLTY FAULTING REF LOG PAGE 3276326. AMM REQUIRES 5 MINUTES OF OPERATION, PACK FAULTS AND SHUTS OFF AFTER 2.5 MINUTES.  REPLACE RECIRCULATION FILTERS R & R LT & RT RECIRC FILTERS REF AMM 21-25-01, RAN APU WITH PACKS ON, NO ODOR DETECTED. RAN ENG 1 WITH PACKS ON, NO ODOR DETECTED. RAN ENG 2 WITH PACKS ON NO ODOR DETECTED. REF AMM 71-00-00.  OPS CHECK GOOD. NO ODOR DURING APU OPS OR ENGINE OPS

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