# Accident 19891216051339A: Beech 35A33, Denver, CO, December 16, 1989

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: December 16, 1989, 13:40 local time
- Place: Denver, CO
- Airport: Centennial Airport
- Damage: Destroyed
- Phase of flight: Final Approach-IFR
- Operating rules: General operating rules (Part 91)
- Location: 39.3700° N, 104.8503° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=39.3700&lon=-104.8503&mi=10
- Aircraft: N477T, a cancelled registration (https://openairdocs.org/deregistered/N477T-1998-07-07) (OpenAirDocs)
- Registry model: Beech 35-A33 (registry code 1151404, https://openairdocs.org/model/beech-35-a33) (OpenAirDocs)
- Reported make and model: BEECH 35A33
- Reported engine: CONT IO470K
- People aboard: 2
- Fatal injuries: 2
- Pilot flight hours: 1,554 total, 63 in this make and model, 12 in the last 90 days
- NTSB investigation: [NTSB DEN90FA033](https://openairdocs.org/ntsb/DEN90FA033) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19891216051339A

## Narrative

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

LOST ORIENTATION ON ILS APPROACH AND DESCENDED INTO A VALLEY UPSLOPE. LACKED RECENT IFR EXPERIENCE. NO BIENNIAL.

## 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 DEN90FA033](https://openairdocs.org/ntsb/DEN90FA033), Dec 16, 1989: Beech B35-A33 (N477T), Castle Rock, CO, destroyed, 2 fatal. Probable cause: THE PILOT'S LOSS OF CONTROL AS A RESULT OF SPATIAL DISORIENTATION. FACTORS RELATED TO THE ACCIDENT WERE: THE ADVERSE WEATHER CONDITIONS.

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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