I'm not asking what you do with your aircraft, I'm just asking what is Cessna's definition of "Hours of operation". What other people do won't help any when I want to have a maintenance programme approved. What will help is the ability to demonstrate that the phrase "hours of operation" in the maintenance manual published by Cessna refers to airborne time and not to flight time.
Apparently nobody knows, which is surprising.
The phrase "hours of operation" is not defined in the FAR's, at least I could not find any definition, nor could I in Cessna documents, nor in ATA Spec 100 about maintenance manuals.
I'll ask Cessna, and hope to get an answer in writing.
Last edited by 172510; 7th December 2015 at 09:23.