R44- Lycoming Service Bulletin No. 388C
My new helicopter is in for annual inspection. This is a 2020 new R44 Raven I with TT 105 hours. The shop asked me if I want to do above mentioned SB. The SB applies at 300 hours but the mechanic says they recommend doing at 100 hours and then 300 hours apart. This was a surprise to me. As a private part 91 owner/operator I am not required to comply. Cost is $1200.
To other R 44 owners : what is your experience with exhaust valve problems ? Are they common ?
Helicopter is flying fine and there is no roughness at anytime . I do proper warm up and cooldown of engine as per POH. Engine uses 1 QT oil / 8 hours. I am using Phillips XC 20W 50 oil with Camguard .
Apart from cost I am believer in if its not broken -dont fix it concept. When the things gets opened and closed, there is always potential of something not put together properly.
Your suggestions are appreciated