Lycoming Eliminates Frequent Use Restriction for Engines on Robinson Helicopters
Torrance, CA ? Lycoming Service Instruction No. 1009AW (February 24, 2014) eliminates the previous 2200 time-between-overhaul (TBO) requirement that specified engines be used in ?frequent? service, defined as 40 hours or more per month.
The Service Instruction extends the engine overhaul period from 2000 to 2200 hours without restrictions, and applies only to Lycoming engines built to specifications for and installed in Robinson helicopters.