CEN09CA351 · Bell 206B
Textron Financial Bell 206B · Accident: landing area undershoot during autorotation
From Bell Training Facility Heliport (3XS7) to Bell Training Facility Heliport (3XS7)
Event
- NTSB case
- CEN09CA351
- 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
- Unknown
- 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 206B
- 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
- N43791
- Operator
- Textron Financial
- Onboard fatalities
- Unknown
- Route
- From Bell Training Facility Heliport (3XS7), Justin, TXTo Bell Training Facility Heliport (3XS7), Justin, TX
- 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
- Autorotation
- Defining eventThe 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
- Landing area undershoot
- 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
- Environmental issues › Conditions/weather/phenomena
- Personnel issues › Action/decision
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
The helicopter instructor pilot was demonstrating an “extended glide” autorotation to a paved landing “lane” when the accident occurred. The autorotation was initiated at an altitude of approximately 740 feet above ground level (agl). Upon reaching an altitude of 75 feet agl, the pilot determined that he was going to land short of the paved surface so he applied power; however, lift was suddenly lost. He then noticed a raised concrete lip between the grass and the landing lane so he applied aft cyclic hoping the front of the skids would not catch on the raised pavement. The helicopter touched down in the soft terrain, slid over the rise in the pavement, and became airborne. The helicopter then touched down on the pavement, at which time the tail boom was severed. The helicopter slid about 75 feet and turned to the right about 40 degrees prior to coming to rest. Winds at the time of the accident were from 180 degrees at 9 knots, gusting to 18 knots. The autorotation was being performed to the south.
Probable cause
The instructor pilot's failure to add sufficient power early enough to compensate for the strong gusting headwinds.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record CEN09CA351
- Event ID
- 20090612X63713
- Case number
- CEN09CA351
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
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, coordinates. 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: 835f3276414ed944f46fe6b0a27bb58414b0a3085e69b11a7f8f153534bb2fae; retrieved 2026-09-15T11:24:19.186Z.