# SDR CALA2026042815762

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 25, 2026
- Submitted: April 28, 2026
- Operation: Air carrier
- Aircraft: [N794UA](https://openairdocs.org/aircraft/N794UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26953
- Aircraft time: 114,729 hours, 14,989 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Unknown
- Condition: Odor
- Location: Zone
- 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/CALA2026042815762

## Discrepancy

SMOKE ODOR CONDITIONAL INSP REQUIRED PER AMM 05-51-XX DUE TO AN INCIDENT REPORTED BY THE CREW.  REF AMM 05-51-58-800-801-C3,  INITIAL INSPECTION AND OPERATIONAL CHECKS CARRIED OUT UP TO C (2) (H) ODOR MORE APPARENT FROM LT PACK THAN RT WITH APU PROVIDING PNEUMATIC AIR. UNABLE TO CARRY OUT ABOVE IDLE ENGINE RUNS AT THIS TIME DUE LOCAL RESTRICTION. LT ENGINE IDLE RUN CARRIED OUT, PROVIDING PNEUMATIC AIR TO THE LT PACK, ODOR STILL APPARENT. APU OIL LEVEL VISUALLY CONFIRMED. APU PNEUMATIC DUCT SPLIT IN STAB BAY, NO EVIDENCE OF OIL OR ODOR.

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