# SDR SWAA053493

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 6, 2005
- Submitted: November 7, 2005
- Operation: Air carrier
- Aircraft: [N334SW](https://openairdocs.org/aircraft/N334SW), registered now
- Make and model: Boeing 737-3H4
- Registry model: [Boeing 737-3H4](https://openairdocs.org/model/boeing-737-3h4) (OpenAirDocs)
- Aircraft serial: 23938
- Aircraft time: 57,756 hours, 53,435 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Relief Valve
- Part number: 7207375
- Condition: Faulty
- Location: Cabin Pressure
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA053493

## Discrepancy

AIR TURNBACK, CABIN PRESSURE AUTO FAIL LIGHT ILLUMINATED.  REMOVED AND REPLACED LT CABIN PRESSURE SAFETY RELIEF VALVE PER MM.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.