# SDR SWAA2015030637175

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2015
- Submitted: March 6, 2015
- Operation: Air carrier
- Aircraft: N748SW
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29800
- Aircraft time: 56,144 hours, 32,937 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Line
- Part number: 272A4401
- Condition: Leaking
- Location: Mlg Ww
- Stage of operation: CR
- How discovered: O
- Nature of condition: K, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2015030637175

## Discrepancy

DIVERSION, HYD B SYS LOSS.  FOUND HYD POWER TRANSFER UNIT LINE LEAKING.  R & R LINE IAW MM.

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