Bell 407 accident near Long Marston, Gb, June 24, 2020
On June 24, 2020 at about 12:20 pm local time, a Bell 407 (helicopter), registered N120HH, was destroyed in an accident during enroute near Long Marston. It was flown under non-U.S. commercial rules. No one was hurt; 2 people were on board or involved.
The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- June 24, 2020 · about 12:20 pm local time
- Place
- Long Marston, Gb
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- not recorded
- Aircraft
- Bell 407 No Series · all 407s on the register
- Registration
- N120HH · registry record · serial 53661
- Damage
- Destroyed
- Flight
- Flight · non-U.S. commercial rules
The NTSB's narrative preliminary · quoted from the NTSB record
The government of the United Kingdom has notified the NTSB of an accident involving a Bell 407 helicopter that occurred on June 24, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of the United Kingdom's investigation under the provisions of ICAO Annex 13.All investigative information will be released by the government of the United Kingdom.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Unknown or undetermined during enroute defining event
Pilot
No details recorded.
The aircraft
- Maximum gross weight: 5,501 lb
- Landing gear: fixed
- Engine: Rolls-Royc 250-C47B (turboshaft); 0 hours total
Weather at the time
- Temperature: 0°F (-18°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Other NTSB records under N120HH the same tail number, which may have belonged to a different aircraft at the time
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number CEN20WA246.