# SDR SWAA2026021069486

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 6, 2026
- Submitted: February 10, 2026
- Operation: Air carrier
- Aircraft: [N8541W](https://openairdocs.org/aircraft/N8541W), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 63599
- Aircraft time: 28,464 hours, 14,413 cycles
- System (JASC): [4990 · APU Oil System](https://openairdocs.org/jasc/4990)
- Part: Lubrication Unit
- Condition: Faulted
- Location: Apu
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2026021069486

## Discrepancy

APU SHUTDOWN IN FLIGHT.   R & R APU LUBE MODULE IAW AMM 49-91-11.

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