# Accident 19931112042801A: Bell UH1B, Bend, WA, November 12, 1993

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: November 12, 1993, 11:30 local time
- Place: Bend, WA
- Damage: Substantial damage
- Collision: Midair collision, first aircraft
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: Rotorcraft external load (Part 133)
- Operator: WYFL
- Location: 47.3894° N, 121.6091° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=47.3894&lon=-121.6091&mi=10
- Aircraft: N91NW (not matched to a registry record)
- Reported make and model: BELL UH1B
- Reported engine: LYC T53L11D
- Fatal injuries: 0
- Pilot flight hours: 11,800 total, 1,500 in this make and model
- NTSB investigation: [NTSB SEA94LA030](https://openairdocs.org/ntsb/SEA94LA030) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19931112042801A

## Narrative

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

GRINDING NOISE. UNCONTROLLED RIGHT SPIN. JETTISONED LOAD. AUTOROTATED INTO TREES. OVERSTRESSED GEAR BOX FRACTURES.

## 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 SEA94LA030](https://openairdocs.org/ntsb/SEA94LA030), Nov 12, 1993: Hawkins & Powers UH-1B (N91NW), North Bend, WA, substantial damage. Probable cause: TOTAL FAILURE OF THE INTERMEDIATE GEARBOX. THE LACK OF SUITABLE TERRAIN FOR AN AUTOROTATION WAS A FACTOR.

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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