# SDR SWAA2014031025869

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 6, 2014
- Submitted: March 10, 2014
- Operation: Air carrier
- Aircraft: N230WN
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 34592
- Aircraft time: 29,026 hours, 17,059 cycles
- Engine: Ge CFM567B24
- System (JASC): [2197 · Air Conditioning System Wiring](https://openairdocs.org/jasc/2197)
- Part: Wire Harness
- Part number: 715W5813509
- Condition: Shorted
- Location: Cabin Pressure
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2014031025869

## Discrepancy

DECLARED EMERGENCY, PRESSURIZATION EVENT CRUISING AT FL 400.  STARTED CRUISE DESCENT AT 1000' PER MIN, AT FL 380.  CABIN ALTITUDE CLIMBING +2000' PER MIN, CABIN ALT INDICATED 8500', AT FL 360.  CABIN ALTITUDE SLOWLY CLIMBED ABOVE 10,000', ACTIVATION OF CABIN ALTITUDE WARNING HORN.  R & R HARNESS ASSEMBLY IAW MM.

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