# SDR SWAA2019020129113

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 31, 2019
- Submitted: February 1, 2019
- Operation: Air carrier
- Aircraft: N795SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 30606
- Aircraft time: 63,241 hours, 37,006 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Ptu
- Part number: 271A7441
- Condition: Leaking
- Location: Mlg Ww
- Stage of operation: DE
- 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/SWAA2019020129113

## Discrepancy

DECLARED EMERGENCY, FUMES DETECTED IN BOTH CABINS.  FOUND HYD POWER TRANSFER UNIT LEAKING AT FLOW LIMITER.  R&R POWER TRANSFER UNIT PER MM.

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