For those who operate radial-engined aeroplanes, some rather important findings from the AAIB report are highlighted in this summary from the Historic Aircraft Association Engineering Group.

It raises important issues on the correct pre-start procedures in the event of ‘hydraulic locking’ of radial engines and it is noted that this may also be applicable to operators of aircraft with inverted inline engines too.

http://www.haa-uk.aero/news-details.php?news-id=92