# SDR AALA202601307454

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 25, 2026
- Submitted: January 30, 2026
- Operation: Air carrier
- Aircraft: [N776AN](https://openairdocs.org/aircraft/N776AN), registered now
- Make and model: Boeing 777223
- Aircraft serial: 29582
- Aircraft time: 103,429 hours, 12,985 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Air Filter
- Part number: CD00944F2
- Condition: Contaminated
- Location: Zone 100
- 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/AALA202601307454

## Discrepancy

AIRCRAFT WAS GROUNDED: SOF EVENT AT 5000 FEET.  REMOVED AND REPLACED LEFT HAND ACM (AALA202601277565) AND RIGHT HAND ACM (AALA202601300720). PER 21-52-02. ALSO, REMOVED AND REPLACED AIR FILTERS (AALA202601307454).

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