FTW02FA017 · Aerospatiale AS350B2
Medical Air Transport Aerospatiale AS350B2 · Accident: airframe, component or system failure while maneuvering
From Roswell, NM to an unrecorded destination
Event
- NTSB case
- FTW02FA017
- 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
- 2 · 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
Aerospatiale AS350B2
- Aircraft type
- Aerospatiale AS350
- 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
- N111DT
- Operator
- Medical Air Transport
- Onboard fatalities
- Unknown
- Route
- From Roswell, NMTo 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
- Maneuvering
- 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
- Airframe, component or system failure
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Destroyed
Cause areas
- Rotorcraft flight control, cyclic control › Seized
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
After a maximum performance takeoff (to clear wires) from a parking lot, the helicopter departed the area to the west and climbed to an altitude of 5,500 feet msl. After selecting a landing zone, the pilot turned northwest toward the area and initiated a descent. The pilot's intention was to bring the helicopter to a high hover, allow the dust to settle, and then land. As the helicopter descended to about 200 feet agl, at an airspeed of 115-120 knots, the pilot initiated a right turn into the wind. As the helicopter was turning, the pilot realized the turn was "too steep" and tried to shallow the turn; however, the cyclic would not move. At one point the pilot tried to neutralize the cyclic with both hands but to no avail. The pilot did not remember any "stiffness" with the collective, and he did not hear a warning horn or see any lights illuminate. Subsequently, the helicopter impacted the ground. No pre-impact anomalies were observed during an examination of the airframe and engine. No anomalies were noted during the examination and testing of the hydraulic servos that would have prevented their operation.
Probable cause
The seizing of the cyclic control for an undetermined reason. A contributing factor was the lack of altitude for the pilot to regain control of the helicopter.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record FTW02FA017
- Event ID
- 20011025X02148
- Case number
- FTW02FA017
- 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, 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: 21509484f5abb9a35bab10667764fb92b0d7f42f725eb4bb3be639207667f791; retrieved 2026-09-20T20:19:39.955Z.