Enstrom 280FX, G-VVWW, 20 July 2006

• From: Air Accidents Investigation Branch
• Published: 10 December 2014

• Category: General aviation - rotorcraft
• Report type: Bulletin - Field investigation
• Date of occurrence: 20 July 2006
• Aircraft type: Enstrom 280FX
• Location: 1.5 to 2 miles north of Epsom Racecourse, Surrey
• Registration: G-VVWW

Enstrom 280FX, G-VVWW

Summary:

A few minutes after leaning the fuel mixture the pilot felt a significant engine vibration, shortly after which the low rotor rpm warning horn sounded and the warning light illuminated. The pilot lowered the collective lever and opened the throttle which briefly restored the rotor rpm. The engine rpm continued to decrease and the pilot realised that the helicopter could not maintain level flight and decided to enter an autorotation to land. During the landing flare the tail rotor contacted the ground. Following repair a number of test flights were conducted where full engine power was achieved. It was found that there was an unusual engine-generated vibration which, on examination, was found to have been caused by a partially restricted fuel injector nozzle.

Download report:

Enstrom 280FX, G-VVWW 04-07.pdf (240.01 kb)

Published 10 December 2014