# SDR CALA2026010212574

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2025
- Submitted: January 2, 2026
- Operation: Air carrier
- Aircraft: [N2644U](https://openairdocs.org/aircraft/N2644U), registered now
- Make and model: Boeing 777-300ER
- Registry model: [Boeing 777-300ER](https://openairdocs.org/model/boeing-777-300er) (OpenAirDocs)
- Aircraft serial: 63724
- Aircraft time: 36,999 hours, 3,968 cycles
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Fan
- 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/CALA2026010212574

## Discrepancy

SMOKE ODOR CONDITIONAL INSP REQUIRED PER AMM 05-51-XX DUE TO AN INCIDENT REPORTED BY THE CREW. REF LP 7458681 COMPLIED AMM TASK 05-51-58-800-801-C3 WITH CMC MSG 21-24700 VISUAL CHECK AND DEACTIVATED LOWER RIGHT RECIRCULATING FAN. OPERATE AIR CONDITIONING ON GROUND, NO MORE TRACES OF ODOR/SMOKE ON THE CABIN.

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