Robinson R66 G-WBRN accident near Chalfont St Peter, Buckinghamshire, United Kingdom, June 11, 2025

Robinson R66, registration G-WBRN, operated by HQ Aviation, was involved in an accident near Chalfont St Peter, Buckinghamshire, United Kingdom on June 11, 2025. The NTSB lists the highest injury level as fatal, with 1 people on board. Case GAA25WA183 is n/a.

ADS-B receivers recorded 3 minutes of the flight after departing the Northolt area (EGWU), reaching a maximum of 1,250 ft. The last recorded position was at 07:06 UTC, at 250 ft and 16 knots, descending at 5,184 feet per minute, about 12 km from Northolt (EGWU).

The nearest weather report, from EGWU (12 km away), showed wind 110° at 7 knots, visibility 6 miles or more, ceiling 500 ft (IFR conditions).

The aircraft is a Robinson Helicopter Co Inc R66 TURBINE registered in United Kingdom (Mode S 407EF9).

This page reconstructs the flight from public ADS-B data for information only. The NTSB report is the authority on what happened and why.

Key facts

Date
June 11, 2025
Location
Chalfont St Peter, Buckinghamshire, United Kingdom
Aircraft
Robinson R66
Registration
G-WBRN
Operator
HQ Aviation
Injuries
Fatal (1 on board)
NTSB case
GAA25WA183 (N/A)
Departure area
Northolt (EGWU)
Nearest airport
Northolt (EGWU)
Recorded flight
3 min, max 1,250 ft
Last recorded position
07:06 UTC, 250 ft, 16 kt

3D flight replay

Replay the recorded flight in 3D with the weather, light and terrain at the time, flight instruments reconstructed from the aircraft's ADS-B transmissions, and automatically detected events.

Related accidents

Sources: NTSB case GAA25WA183; ADS-B flight data from adsb.lol (ODbL); weather from NOAA / Iowa Environmental Mesonet and Open-Meteo.