DEN00LA124 · Bell 206L-3
Bell 206L-3 · Accident: in flight collision with object on approach
From Logan-Cache Airport (LGU) to an unrecorded destination
Event
- NTSB case
- DEN00LA124
- 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
- General aviation
- 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-3
- 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
- N38903
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Logan-Cache Airport (LGU)To 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 91: General Aviation
- 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
- Approach
- 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
- In flight collision with object
- 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
- Object › Other
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
Following maintenance on the helicopter, the pilot was conducting a test flight. Takeoff was made with the left passenger door unlatched. When this was pointed out to the pilot by radio, he commenced a precautionary approach/landing to close the door. During the approach, the pilot felt and heard a bang followed by a vibration and rattling noise. This subsided and the pilot analyzed a loss of tail rotor control. He conducted a forced landing and the helicopter rolled on its left side during the landing. The main rotor blades and rotor head separated and the main rotor blades and tail rotor struck the tail boom. At the time of the flight, a jacket with red and black stenciled letters on the back was lying on the passenger seat. It was not found following the accident. Examination of the helicopter following the accident revealed a torsional fracture of the number 4 tail rotor drive shaft section and a bend in the number 5 section. Also, the tail rotor blades had red paint transfer, and one had a dent in the leading edge, and was bent near the blade root. Analysis of the paint transfer revealed it did not come from the jacket lettering. Parts of the helicopter were painted red and the red part of the tail boom exhibited paint transfer and slap marks. The tail rotor blades did not exhibit rotational impact damage.
Probable cause
in-flight collision with a jacket, which blew out of the helicopter because the left passenger door was not properly secured prior to takeoff. A contributing factor was the pilot's failure to ensure the door was properly closed prior to takeoff.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record DEN00LA124
- Event ID
- 20001212X21434
- Case number
- DEN00LA124
- 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: 279a27f48b5b2574573788da23dc2eadefd082033b212696112fd5f7bd8827f0; retrieved 2026-09-22T12:43:25.292Z.