# SDR SWAA2018101525925

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 13, 2018
- Submitted: October 15, 2018
- Operation: Air carrier
- Aircraft: N403WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29815
- Aircraft time: 61,743 hours, 36,287 cycles
- System (JASC): [3610 · Pneumatic Distribution System](https://openairdocs.org/jasc/3610)
- Part: Shutoff Valve
- Part number: 32145526
- Part serial: 7886
- Condition: Faulty
- Location: Bleed Air Sys
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2018101525925

## Discrepancy

AIR TURNBACK, DURING SINGLE PACK OPERATION, RIGHT PACK TRIPPED COULD NOT RESET.  R&R PRESSURE REGULATORY AND SHUTOFF VALVE IAW AMM.

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