So is the 30 minute number the amount of time without damage or the amount of time before catastrophic failure?
The 206/OH-58 has always been one of my favorite aircraft.
With our cap, it has to be tightened all the way, then at the very end it clicks when it is fully secured. Interestingly, the RFM says nothing about the detent/click. And, if the cap is properly secured, you won't get a click if you twist on it.
Also want to make sure you aren't describing the engine oil reservoir which is accessed through a door and the transmission oil filler which you reach down along the mast from the top of the helicopter.
Likes pretty much everything in every caliber.
As long as we are doing true confessions, I can't recall having added oil to the transmission or removing the cap. My wife has added transmission oil once or twice in 20 years of flying helicopters. There is a sight glass for level and we check that on preflight.
We carry transmission oil in the ship for adding on an emergency/maintenance basis in the field, but frankly it is a maintenance item.
Likes pretty much everything in every caliber.
Not as cool as the Bell, however I am curious if there are any Mooney owners on this forum.