AAIB investigation to Robinson R44 II, G-OPDG
Loss of rotor rpm when landing, Maghera, County Londonderry, 22 July 2021.
Summary:
Whilst reducing the rate of descent to land, the low rotor rpm warning light illuminated, and the warning horn sounded. The pilot attempted to recover rotor rpm whilst also manoeuvring the helicopter to avoid obstacles but, on touching down, the helicopter struck a fence and building.
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