# NTSB ANC91TF#02: Bell 206B, N16964, Umnac Island, AK, April 3, 1991

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 3 · Final report
- Date: April 3, 1991, 14:00 local (18:00 UTC)
- Place: Umnac Island, AK
- Coordinates: 53.889083, -166.540802 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=53.8891&lon=-166.5408&mi=10
- Highest injury: No injuries
- Status: Completed
- Investigation class: Class 3
- NTSB office: Alaska Regional Office
- NTSB case key (mKey): 5635
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC91TF#02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/5635/pdf
- Page: https://openairdocs.org/ntsb/ANC91TF%2302

## Aircraft

- Registration: N16964 (not matched to a registry record)
- Reported make and model: Bell 206B
- Category: Helicopter
- Damage: Substantial damage
- Fire: Unknown
- Flight: Public aircraft, Public use
- Operator: Maritime Helicopters Inc.
- Departed: DUT, DUTCH HARBOR, AK
- Destination: UMNAC ISLAND, AK
- Flight plan: VFR

## Weather

- Conditions: Visual (VMC), Not reported
- Temperature: -0 °F, dew point -0 °F

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.

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