NYC04CA049 · Bell B407
Bell B407 · Accident: in flight collision with object on approach
From Morehead, KY (no airport) to Morehead, KY (no airport)
Event
- NTSB case
- NYC04CA049
- 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 B407
- Aircraft type
- Bell B407
- 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
- N508MT
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Morehead, KY (no airport)To Morehead, KY (no airport)
- 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 · VFR pattern final
- 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
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Pole
- 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
- Ground personnel › Unsafe/hazardous condition, not identified
Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.
NTSB narrative
After two reconnaissance flights over the landing zone, the pilot initiated an approach. The pilot then performed a go-around due to blowing snow, and completed a third reconnaissance flight over the landing zone. During the second approach, the tail rotor struck a standing frost free hydrant. The hydrant was approximately 1 inch in diameter and 3 feet high. The helicopter subsequently spun right and the pilot performed a hovering autorotation to the ground. Ground personnel had marked the perimeter of the landing zone with lights. However, the ground personnel later stated that they had not walked the interior of the landing zone and were unaware of the obstacle.
Probable cause
The ground personnel's failure to identify the hazardous condition. Factors were blowing snow and night conditions.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record NYC04CA049
- Event ID
- 20040122X00085
- Case number
- NYC04CA049
- 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: local date, investigation status, coordinates. Values present in the bulk record are kept.
- The date is the local date; the NTSB stores the UTC date 2003-12-21.
- API snapshot SHA-256: ec3b91f7e7c6df9598734eb18bedb370ae67a900aa747d6de073cf6c7d40435c; retrieved 2026-09-22T08:03:48.164Z.