The FAA's Alabama/NW Florida FSDO completed their investigation of your allegations in case AAE-EHL-20241114-149. The investigation did not substantiate that a violation of an order, regulation or standard of the FAA occurred related to improper maintenance and a possible fraudulent maintenance logbook after an engine overhaul.
The review of the logbook entry (“All work was accomplished as per the Lycoming Direct Drive Overhaul manual with service limits, and engine remains at current time SMOH and engine TT.”) documenting the work performed was completed and signed per 14 CFR 43.9, by an individual powerplant certificated mechanic.
Thank you for bringing this matter to our attention.
Sincerely,
Federal Aviation Administration | Office of Audit and Evaluation | Washington, D.C.