Piston Engine TBO Extension.

[Jon G. Sigurdsson]

Hi fellows,
Happy new year to you all.
I like to ask if some of you can point me in the right direction to find some literature or FAA regulations or guidance material regarding extending an piston engine on a "N" registered private aircraft. I am trying to gather some facts on the subject other than what people say.
Jon G Sigurdsson

[Zach Grant L1011jock]

Jon,
The FAA has no requirement to do anything based on TBO when the aircraft is not used for hire. TBO is only a recommended number and is commonly exceeded by private aircraft, as well as those in rental and training fleets. Remember TBO is not only a time in service number, but also a calendar time, and is issued solely at the discression of the manufacturer, and can be changed /ammended as they see fit. Lycoming engines are 12 yr and mostly 1800-2400 hrs TIS TBO. The only reason to follow this would be because of a 135 approved maint. program requiring overhaul at manufacturers recommended interval (which is almost a requirement to be included in any manual for it to be approved).

-Zach

[Jon G. Sigurdsson]

[Zach Grant L1011jock]

Jon,
Answer to all....NO. Just keep flying as long as all of the periodic checks are OK (ie. compression, oil change w/ no metal etc...). Only thing that must be signed is the annual, so as long as the IA is comfortable with the situation you are good to go.
-Zach

[Jon G. Sigurdsson]

[Ben Ayalon]

Hi Jon
My 260 is on the N reg. The engine had 2740h when it was removed foran o/h. The one part that i would remove to service or o/h every 500h will be the mags.

Ben