# SDR AALA202602099286

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 7, 2026
- Submitted: February 9, 2026
- Operation: Air carrier
- Aircraft: [N945AN](https://openairdocs.org/aircraft/N945AN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 30085
- Aircraft time: 70,419 hours, 30,252 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Air Filter
- Condition: Contaminated
- Location: Zone 100 - Fuse
- Stage of operation: CL
- 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/AALA202602099286

## Discrepancy

AIRCRAFT WAS GROUNDED: BURNING ODOR COMING FROM PACK SYSTEM NOTICED ON TAKEOFF AND CLIMB, IT WAS ALSO  PRESENT DURING DESCENT. J/C 08L00021001 T/S SOF INITIAL ACCOMPLISHED. REMOVED AND REPLACED RECIRCULATION AIR FILTERS ON THE LEFT HAND (AALA202602094012)AND RIGHT HAND (AALA202602099286). PER AMM 21-25-01.

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