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Lycoming Extends TBO on Long List of Engines

The FAA signed off on an AMOC to Airworthiness Directive AD-2012-19-01 regarding the TBO schedule for a long list of Lycoming engines. Lycoming
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Key Takeaways:

  • The FAA has approved an Alternate Method of Compliance (AMOC) extending the Time Between Overhaul (TBO) by 200 hours for numerous Lycoming engines.
  • This TBO extension applies to Lycoming new, rebuilt, or factory-overhauled engines, or those overhauled by other entities using genuine Lycoming-approved parts and procedures.
  • The 12-year calendar time limit for TBO remains unchanged, though an additional 200 hours can be added for engines accumulating 40+ hours per month.
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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.

Pia Bergqvist

Pia Bergqvist joined FLYING in December 2010. A passionate aviator, Pia started flying in 1999 and quickly obtained her single- and multi-engine commercial, instrument and instructor ratings. After a decade of working in general aviation, Pia has accumulated almost 3,000 hours of flight time in nearly 40 different types of aircraft.

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