# Incident 20010711020119I: Boeing 7373Y0, Sacramento, CA, July 11, 2001

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: July 11, 2001, 06:45 local time
- Place: Sacramento, CA
- Airport: Sacramento Metropolitan
- Phase of flight: Normal Cruise
- Operating rules: Air carrier (Part 121)
- Operator: SWAA
- Location: 38.5816° N, 121.4944° W: Placed by OpenAirDocs: center of Sacramento, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.5816&lon=-121.4944&mi=10
- Aircraft: N682SW, a cancelled registration (https://openairdocs.org/deregistered/N682SW-2015-05-06) (OpenAirDocs)
- Registry model: Boeing 737-3Y0 (registry code 138447W, https://openairdocs.org/model/boeing-737-3y0) (OpenAirDocs)
- Registry engine: CFM International CFM56 series (registry code 13802, https://openairdocs.org/engine/cfm-international-cfm56-series) (OpenAirDocs)
- Reported make and model: BOEING 7373Y0
- Reported engine: GE CFM563B1
- People aboard: 26
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20010711020119I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) AIRCRAFT WAS AT FL350 APPROX 20 MINUTES, WHEN THE CABIN WARNING SOUNDED, CABIN ALTITUDE WAS AT 11,000 FEET AND CLIMBING. CREW INITIATED DESCENT. CABIN ALTITUDE CONTINUED TO CLIMB TO APPROXIMATELY 20,000 FEET. PASSENGER OXYGEN DEPLOYED.  CREW NOTICED RIGHT PRESSURIZATION PACK DUCT PRESSURE SHOWED ZERO PRESSURE.  AIRCRAFT UNABLE TO HOLD CABIN PRESSURE ON ONE PACK AND THERE WAS A LOUD PRESSURIZATION SQUEAL DURING DESCENT AT THE FORWARD ENTRY DOOR.  SWA FOUND RIGHT ENGINE PRSOV VALVE INOP. AIRCRAFT WAS MAINTENANCE FERRIED TO PHX WHERE THE RIGHT ENGINE PRSOV VALVE WAS REPLACED, TWO BLEED LINES WERE REPLACED AND THE OUTFLOW VALVE WAS REPLACED.  FORWARD ENTRY DOOR SEAL WAS RESEATED.  AIRCRAFT WAS OPS CHECKED AND RETURNED TO SERVICE. CLOSED.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

---
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.