# SDR DALA2026060203346

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2026
- Submitted: June 2, 2026
- Operation: Air carrier
- Aircraft: [N937AT](https://openairdocs.org/aircraft/N937AT), registered now
- Make and model: Boeing 717-200
- Registry model: [Boeing 717-200](https://openairdocs.org/model/boeing-717-200) (OpenAirDocs)
- Aircraft serial: 55091
- Aircraft time: 56,442 hours, 41,288 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Oil System
- Condition: Leaking
- Location: Zone 100
- Stage of operation: NR
- 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/DALA2026060203346

## Discrepancy

FLIGHT ATTENDANTS REPORTED A MUSTY OR MILDEW SMELL DURING FLIGHT IN THE MID-CABIN.   FOUND APU COMPARTMENT CONTAMINATED WITH OIL. REPLACED APU PER AMDS W/C 4900-9901. (8655352) (AIRCRAFT GROUNDED)

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