The way Lycomings are built examining the cam/followers requires cylinder removal at the least to get access. There won'y be any outward indications of this wear problem until it's extremely advanced. I've been through this. Inactivity is the culprit and this engine has seen plenty. I would do a co...

You will have to remove multiple cylinders to inspect all six camshaft lobes. In my case it was only two of the six lobes. Some pictures after teardown:

The way Lycomings are built examining the cam/followers requires cylinder removal at the least to get access. There won'y be any outward indications of this wear problem until it's extremely advanced. I've been through this. Inactivity is the culprit and this engine has seen plenty. I would do a cou...

Unique experience today. A firmware update (???) for the Delta Zulu :scratch: I decided to check CO history. It peaked somewhere at 8 PPM. But it never shows that high when I check it in flight. I'm guessing it happened sometime when idling on the ground where the exhaust isn't ripped away with the ...

This SB has grown much more stringent over the years as well as more burdensome to comply with. In 2002 we had a rock ding that apparently caused a small puncture/crack in the leading edge of one blade. The nature of an MT prop is such had to be removed so it could be disassembled and the blade repa...

First and foremost, did the event meet the definition of a prop strike as stated in the AD? So far your description doesn't seem to meet that definition. What kind of pylon was it? It was a rubber cone similar to the one seen here: https://www.uline.com/Product/Detail/S-21634LIME/Traffic-Cones-and-...

Once upon a time the Lycoming SB would reference just checking things accessible by opening up the accessory case. The new version has an entire engine teardown. Look at all the things they demand to be done.

The 2016 SB revision (I hadn't looked at that before) has this amazingly broad definition of e propeller strike, which includes this: Any incident, whether or not the engine is operating, where repair of the propeller is necessary What constitutes "repair"??? The SB does not include the ex...

First and foremost, did the event meet the definition of a prop strike as stated in the AD? So far your description doesn't seem to meet that definition. What kind of pylon was it?

When Nashville was mentioned I thought it was about this accident (last week, departure to IMC): https://aviation-safety.net/wikibase/352204 I see no mention in this of IMC. The fatal leg was from Kentucky and reported engine problems and crashed near the cleared airport. There seems to be some dis...