AD 2001-20-18
Effective 10/15/2001 · Published 10/15/2001
Airworthiness Directives; Robinson Helicopter Company Model R44 Helicopters
Summary
This amendment adopts a new airworthiness directive (AD) for Robinson Helicopter Company (RHC) Model R44 helicopters that requires establishing a life limit of 2200 hours time-in-service (TIS) for affected horizontal stabilizers. This amendment is prompted by engineering analysis which indicates that certain vertical-to- horizontal stabilizer attach channels (channels) will crack sooner than the original life limit…