# SDR SWAA2015071441903

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 10, 2015
- Submitted: July 14, 2015
- Operation: Air carrier
- Aircraft: [N712SW](https://openairdocs.org/aircraft/N712SW), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27846
- Aircraft time: 60,969 hours, 36,349 cycles
- System (JASC): [2120 · Air Distribution System](https://openairdocs.org/jasc/2120)
- Part: Duct
- Part number: 6973714
- Condition: Broken
- Location: Ac Bay
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2015071441903

## Discrepancy

DECLARED EMER.  CABIN ALT WARNING HORN SOUNDED AT FL 340, CABIN ALT REACHED 10,000' NO LIGHTS OR INDICATIONS FROM ANY SYSTEMS ILLUMINATED.  FOUND BROKEN DUCT IN AIR DISTRIBUTION BAY IN AFT FWD CARGO COMPARTMENT RT SIDE.  R & R DUCT IAW AMM.

---
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.