# Incident 19871224076789I: Doug DC931, St Louis, MO, December 24, 1987

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 24, 1987, 12:30 local time
- Place: St Louis, MO
- Airport: Lambert-St Louis International
- Phase of flight: Climb
- 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: N985Z, a cancelled registration (https://openairdocs.org/deregistered/N985Z-2005-10-19) (OpenAirDocs)
- Registry model: Mcdonnell Douglas DC-9-31 (registry code 302206A, https://openairdocs.org/model/mcdonnell-douglas-dc-9-31) (OpenAirDocs)
- Registry engine: Pratt & Whitney JT8D-5 (registry code 52046, https://openairdocs.org/engine/pratt-whitney-jt8d-5) (OpenAirDocs)
- Reported make and model: DOUG DC931
- People aboard: 104
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19871224076789I

## Narrative

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

UNABLE TO CONTROL CABIN PRESSURE ON CLIMBOUT. RETURNED TO AIRPORT. FOUND A FAILED DUCT CLAMP AT A WATER SEPARATOR.

## Other reports on N985Z (1)

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

- [Incident 19851104059259I](https://openairdocs.org/incident/19851104059259I), Nov 4, 1985: Doug DC931 (N985Z), St Louis, MO, Minor damage. Mechanic found aft lavatory compartment filled with smoke. Used halon on trash receptacle and burned paper towel.

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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