ANC84FA091 · Bell 206L-1
Bell 206L-1 · Accident: partial loss of engine power (non-mechanical) during initial climb
Event
- NTSB case
- ANC84FA091
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- Charter & commuter
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Bell 206L-1
- Aircraft type
- Bell 206
- Category
- Helicopter
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N5751Q
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From not recordedTo not recorded
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 135: Air Taxi & Commuter
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Initial climb
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Partial loss of engine power (non-mechanical)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Pilot in command › Performance data, exceeded
- Reason for occurrence undetermined
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE HELICOPTER EXPERIENCED AN ENG POWER LOSS DURING TAKEOFF AND DESCENDED INTO MARSHY TERRAIN. THE PIC STATED THAT HE WAS DEPARTING FROM A CONFINED AREA & AT 90% TORQUE THE ACFT ROSE TO 50 FT AGL. HE THEN ROSE TO 200 FT AGL BUT COULD NOT RECALL POWER SETTINGS. UPON REACHING 200 FT AGL HE NOSED THE ACFT OVER TO ACCELERATE AND BANKED LT USING APPROX 20 DEG BANK. HE FELT THE ACFT SHUDDER AND IT BEGAN TO SETTLE; HE ADDED POWER AND THE LOW RPM AUDIO & LIGHT CAME ON. DURING THE DESCENT HE NOTICED N2 RPM DECREASING & IT PASSED THRU 90%; HE LOWERED THE COLLECTIVE & IT STABILIZED AT 80%. HE SAID HE ATTEMPTED TO REGAIN RPM BY 'PUMPING' THE COLLECTIVE, BUT TO NO AVAIL & THE ACFT CRASHED. EXAMINATION OF THE WRECKAGE AND SUBSEQUENT TESTING DID NOT REVEAL ANY MECHANICAL REASON FOR THE POWER LOSS.
Verbatim NTSB analysis from the NTSB dataset
Sources
NTSB record ANC84FA091
- Event ID
- 20001214X39773
- Case number
- ANC84FA091
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 8008ec3776f9a789196252e9c529cb3f3da87088b94f58fc7bc58471a8dab770; retrieved 2026-09-18T20:40:14.888Z.