# SDR AALA202211023870

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2022
- Submitted: November 2, 2022
- Operation: Air carrier
- Aircraft: [N109UW](https://openairdocs.org/aircraft/N109UW), registered now
- Make and model: Airbus A320-214
- Registry model: [Airbus A320-214](https://openairdocs.org/model/airbus-a320-214) (OpenAirDocs)
- Aircraft serial: 1065
- Aircraft time: 66,361 hours, 32,882 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: 38007081
- Part serial: P3558
- Condition: Odor
- Location: Zone 100 - Fuse
- Stage of operation: AP
- 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/AALA202211023870

## Discrepancy

AIRCRAFT WAS GROUNDED: DURING FINAL APROACH /LANDING AT 1500 FEET FLIGHT CREW SMELLED ACRID FUMES LIKE WET / MUSTY CLOTHES IN THE FLIGHT DECK, DONNED OXYGEN MASKS AND RAN SMOKE/AVIONICS SMOKE/FUMES CHECKLIST. NO FUMES NOTED IN CABIN. AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED SAFELY WITHOUT FURTHER INCIDENT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU. **SUPPLEMENTAL REPORT FOR AALA202210253870: MAINTENANCE CLEANED THE APU INLET PER TASK CARD 26T31049006, CLEANED THE APU LOAD COMPRESSOR PER TASK CARD 26L31049009 AND CLEANED THE APU COMPARTMENT PER AMM 49-00-00-100-003-A. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLISHED WITH NO ODORS BEING NOTED. ** (CLOSED)

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