# SDR AALA202309278726

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2023
- Submitted: September 27, 2023
- Operation: Air carrier
- Aircraft: [N563UW](https://openairdocs.org/aircraft/N563UW), registered now
- Make and model: Airbus A320*
- Aircraft serial: 5368
- Aircraft time: 32,949 hours, 13,309 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: 38007081
- Part serial: P4101
- Condition: Leaking
- Location: Zone 100 - Fuse
- Part time: 33,579 hours, 18,532 cycles
- 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/AALA202309278726

## Discrepancy

AIRCRAFT WAS GROUNDED: THROUGH 13000' SWEAT, LOCKER ROOM,DIRTY SOCK, MILD/MODERATE /PERSISTANT ODOR THROUGH FLIGHT DECK ONLY, SWITCHED TO APU BLEED NO MORE ODOR WAS PRESENT. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU DUE TO FINDING OIL LEAKING FROM THE APU LOAD COMPESSOR DRAIN. **SUPPLEMENTAL REPORT FOR AALA202309188726: MAINTENANCE REPLACED THE APU PER TASK CARD 26L31049003 AND ACCOMPLISHED A SATISFACTORY LEAK / OPERATIONAL CHECK.** (CLOSED)

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