# Incident 19901222060779I: Doug DC931, Sioux City, IA, December 22, 1990

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: December 22, 1990, 01:00 local time
- Place: Sioux City, IA
- Airport: Sioux Gateway
- Phase of flight: Final Approach-IFR
- Operating rules: Air carrier (Part 121)
- Operator: TWAA
- Location: 42.5000° N, 96.4003° W: Placed by OpenAirDocs: center of Sioux City, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.5000&lon=-96.4003&mi=10
- Aircraft: N983Z, a cancelled registration (https://openairdocs.org/deregistered/N983Z-2013-05-30) (OpenAirDocs)
- Registry model: Douglas DC-9-31 (registry code 3022065, https://openairdocs.org/model/douglas-dc-9-31) (OpenAirDocs)
- Registry engine: Pratt & Whitney JT8D-1 (registry code 52044, https://openairdocs.org/engine/pratt-whitney-jt8d-1) (OpenAirDocs)
- Reported make and model: DOUG DC931
- People aboard: 52
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19901222060779I

## Narrative

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

UNSAFE LEFT GEAR DOWN WARNING. MANUALLY EXTENDED GEAR. LANDED GEAR INDICATOR SWITCH.

## Other reports on N983Z (3)

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

- [Incident 19891109056059I](https://openairdocs.org/incident/19891109056059I), Nov 9, 1989: Doug DC931 (N983Z), Dayton, OH. Unsafe left main gear indication. Landed safely. Found a faulty left main gear door switch.
- [Incident 19860713056179I](https://openairdocs.org/incident/19860713056179I), Jul 13, 1986: Doug DC931 (N983Z), St Louis, MO. Aborted takeoff due to inability to obtain target epr. Adjustment made to engine trim.
- [Incident 19780505032079I](https://openairdocs.org/incident/19780505032079I), May 5, 1978: Doug DC9 (N983Z), Denver, CO. Compressor stall during takeoff roll due to slush injestion. Pilot aborted. Missed taxiway, into mud

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.