# Incident 19910523031649I: Gulstm 690C, Denver, CO, May 23, 1991

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: May 23, 1991, 20:30 local time
- Place: Denver, CO
- Airport: Stapleton International
- Damage: Minor damage
- Phase of flight: Final Approach
- Operating rules: Air taxi and commuter (Part 135)
- Operator: CBCA
- Location: 39.7306° N, 104.9199° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=39.7306&lon=-104.9199&mi=10
- Aircraft: N81TR, a cancelled registration (https://openairdocs.org/deregistered/N81TR-1993-02-09) (OpenAirDocs)
- Registry model: Rockwell International 690C (registry code 7630517, https://openairdocs.org/model/rockwell-international-690c) (OpenAirDocs)
- Reported make and model: GULSTM 690C
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 3,250 total, 375 in this make and model, 70 in the last 90 days
- NTSB investigation: [NTSB DEN91IA076](https://openairdocs.org/ntsb/DEN91IA076) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19910523031649I

## Narrative

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

HEARD THUD WHEN FLAPS CAME DOWN. AIRCRAFT ROLLED. PUT FLAPS UP AND LANDED WITH NO FURTHER PROBLEMS.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DEN91IA076](https://openairdocs.org/ntsb/DEN91IA076), May 24, 1991: Aero Commander 690C (N81TR), Denver, CO, incident, no damage. Probable cause: FATIGUE FAILURE OF FLAP CABLE.

## Other reports on N81TR (3)

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

- [Accident 19921222051069A](https://openairdocs.org/incident/19921222051069A), Dec 22, 1992: Gulstm 690C (N81TR), Golden, CO, Destroyed, 1 fatal. Broke up inflight while descending to land. Severe clear air turbulence. High ground speed. AIRMET for turbulence.
- [Incident 19910322013119I](https://openairdocs.org/incident/19910322013119I), Mar 22, 1991: Gulstm 690C (N81TR), Cody, WY, Minor damage. Pilot neglected to lower landing gear and landed gear up.
- [Incident 19901206058869I](https://openairdocs.org/incident/19901206058869I), Dec 6, 1990: Gulstm 690C (N81TR), Riverton, WY, Minor damage. Parked van rolled backward toward aircraft. Driver hurt by moving propeller trying to stop van.

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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