# SDR AALA202109241974

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2021
- Submitted: September 24, 2021
- Operation: Air carrier
- Aircraft: [N886NN](https://openairdocs.org/aircraft/N886NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 33223
- Aircraft time: 28,609 hours, 11,792 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Condition: Dirty
- Location: Cabin Air
- Stage of operation: DE
- 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/AALA202109241974

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: MUSTY SMELL DURING FINAL APPROACH. REPLACED LH AND RH (AALA202109249326) RECIRCULATION AIR FILTERS IAW AMM 21-25-01, OPS CHECK GOOD.

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