# SDR AALA202111026883

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 22, 2021
- Submitted: November 2, 2021
- Operation: Air carrier
- Aircraft: [N740UW](https://openairdocs.org/aircraft/N740UW), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1265
- Aircraft time: 55,255 hours, 33,376 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil Cooler
- Part number: 1604941
- Part serial: 4340
- Condition: Leaking
- Location: Apu
- Part time: 27,932 hours, 12,024 cycles
- Component: Apu, Honeywell, 1319A
- Component part number: 38007081
- Stage of operation: LD
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202111026883

## Discrepancy

AIRCRAFT WAS GROUNDED: FUMES IN CABIN "DIRTY SOCK SMELL SHORTLY BEFORE LANDING, DURING TAXI AND AT THE GATE. MAINTENANCE:  FOUND APU OIL LEAK FROM COMPRESSOR DRAIN CASE/FLUID INGESTION. REPLACED APU OIL COOLER AND APU OIL COLLING FAN IAW AMM 49-91-44. A SATISFACTORY LEAK / OPERATIONAL CHECK WAS ACCOMPLISHED.

---
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.