# Accident 19860531019929A: Bell UH1M, Wenatchee, WA, May 31, 1986

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: May 31, 1986, 07:10 local time
- Place: Wenatchee, WA
- Damage: Destroyed
- Phase of flight: Pwr On Vertical Ldng/Rtrcrft
- Operating rules: Rotorcraft external load (Part 133)
- Location: 47.3696° N, 120.3504° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=47.3696&lon=-120.3504&mi=10
- Aircraft: N4964N, a cancelled registration (https://openairdocs.org/deregistered/N4964N-1990-05-31) (OpenAirDocs)
- Registry model: Bell UH-1L (registry code 1181401, https://openairdocs.org/model/bell-uh-1l) (OpenAirDocs)
- Reported make and model: BELL UH1M
- Reported engine: LYC T5313B
- Fatal injuries: 0
- Pilot flight hours: 11,250 total, 6,000 in this make and model, 0 in the last 90 days
- NTSB investigation: [NTSB SEA86FA137](https://openairdocs.org/ntsb/SEA86FA137) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19860531019929A

## Narrative

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

THE HELICOPTER IMPACTED TREES AFTER LOSING CONTROL. CORROSION IN THE 42 DEGREE GEARBOX CAUSED METAL FATIGUE.

## 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 SEA86FA137](https://openairdocs.org/ntsb/SEA86FA137), May 31, 1986: Bell UH-1L (N4964N), Wenatchee, WA, destroyed, 1 fatal

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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