# SDR SWAA000757

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 21, 2000
- Submitted: April 26, 2000
- Operation: Air carrier
- Aircraft: N523SW
- Make and model: Boeing 737-5H4
- Registry model: [Boeing 737-5H4](https://openairdocs.org/model/boeing-737-5h4) (OpenAirDocs)
- Aircraft serial: 26565
- Aircraft time: 27,054 hours, 27,133 cycles
- System (JASC): [2130 · Cabin Pressure Control System](https://openairdocs.org/jasc/2130)
- Part: Relay
- Part number: BACR13CG2AB
- Condition: Inoperative
- Location: E/E Bay
- Stage of operation: CR
- 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/SWAA000757

## Discrepancy

DIVERSION, ACFT PRESSURIZATION INOP, LT NAV SYS INOP.  DESCENDED AND AVOIDED DROPPING O2 MASKS.  DIVERTED TO AUS.  REMOVED AND REPLACED RELAY R275.  SYSTEMS OP CK GOOD 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.