IAD98GA039 · Bell 412
Federal Bureau Investigation Bell 412 · Accident: in flight collision with terrain/water during landing
From VA to Washington Manassas Harry P. Davis Field (HEF)
Narrative check · The NTSB narrative appears to contradict this record's flight rules. Values are shown as recorded, not corrected; compare with the narrative.
Event
- NTSB case
- IAD98GA039
- 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 412
- Aircraft type
- Bell 412
- 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
- N82628
- Operator
- Federal Bureau Investigation
- Onboard fatalities
- Unknown
- Route
- From VATo Washington Manassas Harry P. Davis Field (HEF), Manassas, VA
- 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 Possible conflict
- 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
- Landing · flare/touchdown
- 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
- Company/operator mgmt › Inadequate surveillance, inadequate procedure
- Pilot in command › Altitude/clearance, not obtained/maintained
Approximate · Estimated position: the centre of Quantico, VA, the place the record names. Not the accident site.
NTSB narrative
The FBI helicopter completed two circuits around a training road course at low altitude in pursuit of an automobile. The supervisor of the road course arranged the scenario with the pilot, and an instructor drove the automobile. A second vehicle that followed the pursuit filmed the flight. During the second lap, the vehicle reversed direction as it performed a sudden stop. The helicopter performed a deceleration and the tail skid, tailrotor, and tailboom struck the ground. A request for copies of procedural, operational, maintenance, and safety related programs and documents revealed that they either did not exist, or they were in draft form and unapproved for use. The flight was neither trained for, nor was it briefed. The pilots received training from the helicopter manufacturer, but no agency mission training or evaluations were noted in the accident helicopter. The FBI convened an Aviation Accident Review Board (AARB). According to the Board, '... [Unit] pilots worked under the 'fly one helicopter, fly all helicopter' assumption. AARB members unanimously agreed that no management oversight of [unit] operations currently exists.'
Probable cause
the pilot's failure to maintain adequate altitude/clearance above the terrain and the lack of management oversight of aircrews and equipment.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record IAD98GA039
- Event ID
- 20001211X09689
- Case number
- IAD98GA039
- 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: 1b65ddb13676611f82187c69821a44a523ea7ee334a5b7549a9aa7ffaa617abc; retrieved 2026-09-22T17:59:15.996Z.