WASHINGTON — The Federal Aviation Administration (FAA) has proposed a $60,000 civil penalty against Lycoming Engines, located in Williamsport, Pennsylvania. This enforcement action addresses alleged violations of aircraft maintenance regulations.
According to the FAA press release issued on Wednesday, August 26, 2026, the company failed to follow the manufacturer’s manual during maintenance work in September 2024. The violation specifically involved four Lycoming TEO-540-CIA engines.
The FAA alleges that Lycoming released these engines for return to service without replacing the Exhaust Bypass Valve Assembly, a step required by the manual. This omission constitutes the basis for the proposed fine.
Lycoming Engines now has a 30-day window to respond to the FAA’s enforcement letter.
Summary written for CheckAero from the official document. It is not legal advice; read the full text before acting.