# Incident 19880111004689I: Boeing 727231, St Louis, MO, January 11, 1988

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: January 11, 1988, 20:30 local time
- Place: St Louis, MO
- Airport: Lambert-St Louis International
- Phase of flight: Normal Cruise
- Operating rules: Air carrier (Part 121)
- Operator: TWAA
- Location: 38.6273° N, 90.1979° W: Placed by OpenAirDocs: center of St. Louis, MO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.6273&lon=-90.1979&mi=10
- Aircraft: N12301, a cancelled registration (https://openairdocs.org/deregistered/N12301-1994-09-13) (OpenAirDocs)
- Registry model: Boeing 727-231 (registry code 1384079, https://openairdocs.org/model/boeing-727-231) (OpenAirDocs)
- Reported make and model: BOEING 727231
- People aboard: 21
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19880111004689I

## Narrative

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

COMPLETE PRESSURIZATION LOSS. DESCENDED TO LOWER ALTITUDE. REPLACED OUTFLOW VALVES AND AUTO PRESSURE CONTROLLER.

## Other reports on N12301 (3)

Matched to the same aircraft by N-number and date.

- [Incident 19930914038069I](https://openairdocs.org/incident/19930914038069I), Sep 14, 1993: Boeing 727231 (N12301), Kansas City, MO. Unable to maintain cabin pressure. Diverted to Kansas City,changed flow control valve,cleaned debris from cargo door
- [Incident 19880602032879I](https://openairdocs.org/incident/19880602032879I), Jun 2, 1988: Boeing 727231 (N12301), St Louis, MO. Loud bang heard during descent. Lost cabin pressure. Replaced both outflow valves. Checked satisfactory.
- [Incident 19870703041469I](https://openairdocs.org/incident/19870703041469I), Jul 3, 1987: Boeing 72731 (N12301), St Louis, MO. Left main gear would not indicate down and locked. Aircraft landed safely. Landing gear accessory unit replaced.

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.

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