# SDR F3LA202510310321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 28, 2025
- Submitted: October 31, 2025
- Operation: Air carrier
- Aircraft: [N324FR](https://openairdocs.org/aircraft/N324FR), registered now
- Make and model: Airbus A320-251N
- Registry model: [Airbus A320-251N](https://openairdocs.org/model/airbus-a320-251n) (OpenAirDocs)
- Aircraft serial: 07967
- Aircraft time: 24,908 hours, 11,385 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Lubrication Unit
- Part number: 41310204
- Part serial: 7696
- Condition: Leaking
- Location: Apu
- Component: Apu, Hnywl
- Component part number: 38007081
- Stage of operation: IN
- How discovered: O
- Nature of condition: K, B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/F3LA202510310321

## Discrepancy

AIRCRAFT WAS GROUNDED DUE TO THIS EVENT. ODOR EVENT WITH A STALE OR MUSTY ODOR THROUGHOUT THE PLANE, BUT MOSTLY TOWARD THE AFT.  FOUND APU LUBE MODULE LEAKING FROM BASE, REMOVED AND REPLACED LUBE MODULE IAW AMM 49-91-45-000/400-003-A. LEAKS CHECK GOOD. RAN APU BLEED WITH PACKS ON, NO SMELL NOTED. COMPRESSOR WASH REQUIRED. NO LEAKS AT THIS TIME. APU PLACED ON MEL 49-10-01A. AIRCRAFT RETURNED TO SERVICE.

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