Incident Overview
Date: Monday 10 July 1961
Aircraft Type: de Havilland DH-114 Heron 2D
Owner/operator: Metropolitan Air Movements
Registration Number: G-AMTS
Location: Biggin Hill –
ÿ United Kingdom
Phase of Flight: Take off
Status: Destroyed, written off
Casualties: Fatalities: 2 / Occupants: 2
Component Affected: PropellerPropeller
Category: Accident

A Heron aircraft experienced a catastrophic accident during a crew training flight. The aircraft was attempting a takeoff with a simulated no. 4 engine failure and flaps fully down. Upon takeoff, the aircraft deviated from performance capabilities, leading to a series of collisions with trees, a house, and subsequent roll and crash into dense woodland.A Heron aircraft experienced a catastrophic accident during a crew training flight. The aircraft was attempting a takeoff with a simulated no. 4 engine failure and flaps fully down. Upon takeoff, the aircraft deviated from performance capabilities, leading to a series of collisions with trees, a house, and subsequent roll and crash into dense woodland.
Description
The Heron was being used to conduct a crew training flight. An approach was made with a simulated no. 4 engine failure and flaps fully down. After touchdown power was increased and the aircraft took off again, flying very low and at a slow speed. It then struck trees near the airport boundary, struck the roof of a house, rolled on its back and crashed into dense woodland. PROBABLE CAUSE: “The accident was caused by taking off with no. 4 propeller feathered and with the flaps fully down. In this configuration the takeoff was beyond the same performance capabilities of the aircraft and in consequence adequate control could not be attained.”
Primary Cause
The accident was caused by taking off with no. 4 propeller feathered and with the flaps fully down. In this configuration the takeoff was beyond the same performance capabilities of the aircraft and in consequence adequate control could not be attained.The accident was caused by taking off with no. 4 propeller feathered and with the flaps fully down. In this configuration the takeoff was beyond the same performance capabilities of the aircraft and in consequence adequate control could not be attained.Share on: