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 AD-2012-19-01, extending the Time Between Overhaul (TBO) for a wide range of Lycoming engines by 200 hours, while the 12-year calendar limit remains unchanged.
- This TBO extension primarily applies to new, rebuilt, or factory-overhauled Lycoming engines, or those overhauled by other entities using genuine Lycoming parts and approved procedures.
- Additional TBO extensions are possible for engines used frequently (40+ hours per month) or through a corrosion inspection, but published TBO intervals do not apply to engines operated outside Lycoming's specifications.
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