# Incident 19790901033589I: Doug DC915, St Louis, MO, September 1, 1979

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: September 1, 1979, 10:05 local time
- Place: St Louis, MO
- Airport: Lambertg
- Phase of flight: Climb
- Operating rules: Air carrier (Part 121)
- Operator: OZA
- 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: N973Z, a cancelled registration (https://openairdocs.org/deregistered/N973Z-2017-04-04) (OpenAirDocs)
- Registry model: Douglas DC9-15 (registry code 3022036, https://openairdocs.org/model/douglas-dc9-15) (OpenAirDocs)
- Registry engine: Pratt & Whitney JT8D-1 (registry code 52044, https://openairdocs.org/engine/pratt-whitney-jt8d-1) (OpenAirDocs)
- Reported make and model: DOUG DC915
- People aboard: 41
- Fatal injuries: 0
- Pilot flight hours: 0 in this make and model, 0 in the last 90 days
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19790901033589I

## Narrative

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

CABIN PRESSURE NOT CONTROLLABLE. RAPID DESCENT MADE. FOUND A CLAMP LOOSE ON THE AIR CYCLE MACHINE AND A LOOSE DUCT.

## Other reports on N973Z (3)

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

- [Incident 19891002055009I](https://openairdocs.org/incident/19891002055009I), Oct 2, 1989: Doug DC915 (N973Z), St Louis, MO. Burning odor in aircraft on takeoff. Returned. Possible cause was oil in ducts. Right engine recently replaced.
- [Incident 19850924050659I](https://openairdocs.org/incident/19850924050659I), Sep 24, 1985: Doug DC915 (N973Z), St Louis, MO. Grumbling noise from right engine during climb. Returned for landing. Found faulty fuel control unit.
- [Incident 19850531026859I](https://openairdocs.org/incident/19850531026859I), May 31, 1985: Doug DC915 (N973Z), St Louis, MO. Gear door open warning on approach. Landed safely and towed to hangar. Microswitch on door light misaligned.

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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