# SDR AALA202212026008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 15, 2022
- Submitted: December 2, 2022
- Operation: Air carrier
- Aircraft: [N758US](https://openairdocs.org/aircraft/N758US), registered now
- Make and model: Airbus A319-112
- Registry model: [Airbus A319-112](https://openairdocs.org/model/airbus-industrie-a319-112) (OpenAirDocs)
- Aircraft serial: 1348
- Aircraft time: 55,489 hours, 36,028 cycles
- System (JASC): [4900 · Airborne Auxiliary Power Unit (APU) System](https://openairdocs.org/jasc/4900)
- Part: Apu
- Part number: 38007081
- Part serial: P4145
- Condition: Contaminated
- Part time: 31,912 hours, 17,235 cycles
- Stage of operation: CL
- 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/AALA202212026008

## Discrepancy

AIRCRAFT WAS GROUNDED: RANCID ODOR IN CABIN FROM TAKE OFF TO LANDING. MAINTENANCE ISOLATED THE SOURCE OF THE ODOR TO THE APU.  MAINTENANCE FOUND HYD FLUID LEAKING FROM  AFT BELLY DRAINS, WHICH WAS BEING INGESTED INTO APU CAUSING ODOR.  MAINTENANCE REPLACED THE FORWARD CARGO DOOR HYD SELECTOR VALVE,  AND THE AFT CARGO DOOR HYD SELECTOR VALVE  DUE TO LEAKS BEING NOTED.  MAINTENANCE CLEANED  APU AIR INTAKE IAW TASK CARD 26T31049006,  ALONG WITH CLEANING APU COMPARTMENT IAW AMM 49-00-00-100-003-A. THE ENVIRONMENTAL CONTROL SYSTEM WAS DECONTAMINATED IAW TASK CARD 26L00021014, & TASK CARD 26L00021004. A SATISFACTORY LEAK & OPS CHECK WAS ACCOMPLISHED WITH NO LEAKS OR ODORS BEING NOTED.

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