# SDR CALA2026041615409

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 15, 2026
- Submitted: April 16, 2026
- Operation: Air carrier
- Aircraft: [N477UA](https://openairdocs.org/aircraft/N477UA), registered now
- Make and model: Airbus A320-232
- Registry model: [Airbus A320-232](https://openairdocs.org/model/airbus-a320-232) (OpenAirDocs)
- Aircraft serial: 1514
- Aircraft time: 69,096 hours, 30,425 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Filter
- Part number: 424B2007
- Condition: Odor
- Location: Zone 100
- Stage of operation: TX
- 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/CALA2026041615409

## Discrepancy

TAXI OUT-FUMES IN COCKPIT / CABIN.   INSPECTED APU COMPARTMENT FOR LEAKS AND ANY SIGNS OF ABNORMAL CONDITIONS REF. 05-50-00-810-831-A. NO OIL RESIDUE OR LEAKS OBSERVED. APU OIL LEVEL IS AT FULL MARK.  RAN BOTH PACK OFF APU , RAN FOR 30 MINS , RAN IN NORMAL & HIGH,  NO SMELL NOTED , CHECKED EACH GALLEY , COFFEE MAKERS, OVENS , AND CHILLERS,ALL LAV CHECKALSO  ALL NORMAL,  WALKED THROUGH CABIN AND IN COCKPIT NO SMELL NOTED, RAN BOTH ENGINES AND OPERATED BOTH PACKS. NO SMELL OR ODOR  DETECTED. CHECKED FOR OIL LEAKS AT APU NO LEAKS NOTED  REF AMM 05-51-10-200-801-C-1 REMOVED AND REPLACED RECIRCULATING FILTERS REF  AMM 21-21-41/401 REF  ENGINE RUN TEST NR 3 : IDLE LEAK CHECK REFERENCE: TASK 71-00-00-710.

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