# SDR AALA202308189470

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2023
- Submitted: August 18, 2023
- Operation: Air carrier
- Aircraft: [N920US](https://openairdocs.org/aircraft/N920US), registered now
- Make and model: Airbus A320*
- Aircraft serial: 6490
- Aircraft time: 26,602 hours, 10,783 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: 38007081
- Part serial: P6070
- Condition: Leaking
- Location: Zone 100 - Fuse
- Part time: 24,404 hours, 10,623 cycles
- Stage of operation: TO
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202308189470

## Discrepancy

AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORT DIRTY SOCK SMELL NEAR DOOR 2R ON TAKEOFF ONLY. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO AN INTERNAL OIL LEAK ON THE APU. **SUPPLEMENTAL REPORT FOR AALA202308079470: MAINTENANCE CLEANED THE APU COMPARTMENT AND THE APU AIR INTAKE TO REMOVE RESIDUAL CONTAMINATES PER TASK CARD 26T31049006. A SATISFACTORY OPERATIONAL CHECK WAS ACCOMPLKISHED WITH NO LEAKS OR ODORS NOTED** (CLOSED)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.