Hello Net I've been on vacation in LV for the past week and was surprised to find nearly 200 emails when I turned on this afternoon. This answer is a little tardy, but here are a few comments about certified engines. Some of these points have been made already. 1. Certified engines must have logs in which it is written that it and all of it's parts meets the requirements for certification and signed by a competent authority. 2. Each part of that engine must have a traceable history from manufacture thru installation in the certified engine. 3. Any certified engine must be maintained in accordance with all FAA directives. 4. If the basis of the aircraft certification included a certified engine, the aircraft must always maintain a certified engine, You can't just remove the data plate and call it a home built engine because if you do, the aircraft certification will no longer be within the specification which existed when it was issued. You could de-certify the engine before aircraft certification, but you would destroy the value of the certified engine. 5. Not complying with the AD's on engines or components which have them would be foolish. For example, the Bendix dual mag, if the impulse coupler AD were not complied with and the mag subsequently failed, the engine could quit and leave the pilot flying a glider.
Orma L. Robbiins AP/IA Southfield, MI N110LR Tweety, old enough to drink this year Flying and more flying, to the gathering or bust http://www.kr-2.aviation-mechanics.com/