# SDR SWAA2016081054696

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 9, 2016
- Submitted: August 11, 2016
- Operation: Air carrier
- Aircraft: [N917WN](https://openairdocs.org/aircraft/N917WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 36624
- Aircraft time: 29,567 hours, 17,461 cycles
- System (JASC): [2150 · Cabin Cooling System](https://openairdocs.org/jasc/2150)
- Part: Valve
- Part number: 3964982
- Part serial: 3345
- Condition: Failed
- Location: Ac Bay
- Stage of operation: DE
- 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/SWAA2016081054696

## Discrepancy

DIVERSION, DECLARED EMERGENCY, LOSS OF CABIN PRESSURE AT 38,000 FT INITIATED EMERGENCY DESCENT.  LANDED, R & R NR 1 LT PACK VALVE IAW AMM.

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