N N925JL Member Patron Sep 28, 2012 #1 I've read the recently released crankshaft AD for Lycoming Engines. I find the language used in the AD quite difficult to follow. Does anyone know of a guide that can help me better understand the language used in these directives? Jerry Ludwig
I've read the recently released crankshaft AD for Lycoming Engines. I find the language used in the AD quite difficult to follow. Does anyone know of a guide that can help me better understand the language used in these directives? Jerry Ludwig
AK4x4 Well Known Member Sep 29, 2012 #2 AD 2012-19-01 Basicly, if your Lycoming crankshaft s/n is listed in Lycoming Mandatory Service Bulletin (MSB) No. 569A table 5, then it is scrap at overhaul, case seperation, or 12 years which ever occures first. Good luck, Russ
AD 2012-19-01 Basicly, if your Lycoming crankshaft s/n is listed in Lycoming Mandatory Service Bulletin (MSB) No. 569A table 5, then it is scrap at overhaul, case seperation, or 12 years which ever occures first. Good luck, Russ
R rvsxer Well Known Member Sep 29, 2012 #3 I just read the MSB and it looks as if the affected crankshafts are all counterweighted. That should ease a few minds...
I just read the MSB and it looks as if the affected crankshafts are all counterweighted. That should ease a few minds...
