Yak-52, G-YAMS, 27 December 2004
Yak-52, G-YAMS
Summary:
Whilst in the cruise, the engine began to run roughly. As a result, the pilot was unable to maintain altitude and decided to carry out a forced landing in a field. The selected field, however, was un-suitable due to power lines along the field edge being seen late on the approach, so the pilot elected to land in an area of paddocks. The landing attitude was flat and the left wing struck a fence post, which rotated the aircraft to the left, before it came to a halt against the fence. There was no fire. The pilot sustained serious injuries and was assisted from the aircraft by the land owner. Later examination of the engine revealed that the core of the No 5 cylinder rear spark plug had ‘blown out’, causing a loss of compression on that cylinder.
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