If you own an airplane powered by a Lycoming engine, this may come as a welcoming piece of news. The FAA has signed off on an Alternate Method of Compliance (AMOC) to Airworthiness Directive AD-2012-19-01 regarding the TBO schedule for a long list of Lycoming engines. The affected engines along with details for overhaul schedules are listed in Service Instruction No. 1009BA. While the calendar time limit for TBO remains at 12 years, the AMOC extends the TBO by 200 hours.
Lycoming Extends TBO on Long List of Engines
Key Takeaways:
- The FAA has approved an Alternate Method of Compliance (AMOC) for Lycoming engine Time Between Overhaul (TBO) schedules, extending the operational limit by 200 hours while the 12-year calendar limit remains.
- This TBO extension applies to Lycoming new, rebuilt, or factory overhauled engines, or those serviced by other entities using specific Lycoming-approved parts and procedures documented on FAA Form 8130-3.
- Additional provisions allow for further TBO extensions, including another 200 hours for engines operated 40+ hours per month, and an extension of the 12-year limit through a corrosion inspection by an authorized mechanic.
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