ATL00LA058 · Bell 407
Bell 407 · Accident: in flight collision with terrain/water on approach
From Avon Park Executive Airport (AVO) to No airport
Event
- NTSB case
- ATL00LA058
- 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 407
- Aircraft type
- Bell 407
- 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
- N234BH
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Avon Park Executive Airport (AVO), Avon Park, FLTo 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
- 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 terrain/water
- 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 › Proper descent rate, not obtained/maintained
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
The pilot was circling the helicopter at an indicated altitude of 1,000 ft. msl while performing an aerial survey of wild fires during the night. Visibility in the area was limited due to smoke present from the fires. After circling for 25 minutes, the pilot initiated an approach to a grass landing zone. The passenger was calling out altitudes every 50 ft. while the pilot verified the call outs. Shortly after the passenger called out 450 ft., the helicopter impacted the ground while traveling at a speed of 35 knots. The pilot reported that there were no mechanical malfunctions or component failures with the helicopter. In an interview following the accident, the pilot reported that the altimeter setting was approximately 300 feet off. The remote area in which he was flying was very dark with limited lighting.
Probable cause
The pilot's failure to establish/maintain a safe rate of descent during approach to landing. Contributing factors were the pilot's incorrect altimeter (Kollsman) setting, smoke, and dark night conditions.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record ATL00LA058
- Event ID
- 20001212X21153
- Case number
- ATL00LA058
- 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: 8892f0dcaccd0db80aa189e9f286b6f5509a1616bde20e705cb92a66233e1f13; retrieved 2026-09-21T20:12:36.106Z.