# SDR DALA2026031901912

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 16, 2026
- Submitted: March 19, 2026
- Operation: Air carrier
- Aircraft: [N959AT](https://openairdocs.org/aircraft/N959AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55021
- Aircraft time: 57,069 hours, 40,240 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Carbon Seal
- Condition: Leaking
- Location: Apu
- Stage of operation: IN
- How discovered: V
- Nature of condition: K, B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2026031901912

## Discrepancy

AIRCRAFT 9518, STRONG DIRTY SOCK ODOR COMING FROM PACK 2.  FOUND APU TO BE LEAKING THROUGH CARBON SEAL PER B717 AMM 49-00. REPLACED APU. (LP 8237910)

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