# SDR AALA202602111407

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2026
- Submitted: February 11, 2026
- Operation: Air carrier
- Aircraft: [N969NN](https://openairdocs.org/aircraft/N969NN), registered now
- Make and model: Boeing 737823
- Aircraft serial: 31215
- Aircraft time: 32,085 hours, 13,419 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Fan
- Condition: Dirty
- Location: Zone 200
- Stage of operation: CL
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202602111407

## Discrepancy

AIRCRAFT WAS GROUNDED: EQUIPMENT COOLING FAN UNUSUALLY LOAD ON THE FLIGHT DECK. IT WAS NOTICEABLE WHEN IT TURNED OFF ON CLIMB OUT AND WHEN IT CAME BACK ON DURING DESCENT. THE FAN OPERATION SEEMED TO BE ASSOCIATED WITH DIRTY SOCK SMELL. FOUND DUCT INLET VENT SCREEN COVERED WITH DIRTY MOIST DUST. WEATHER RADAR FAN REPLACED AS SUSPECTED LOUD FAN NOISE (AALA202602111407). ALSO REMOVED AND REPLACED EQUIPMENT FAN (AALA202602113093), PER 737 MM 21-27-04.

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