PRODUCT: Lycoming Engines TSIO-540- AK1A, and Continental Motors, Inc. TSIO-360-MB, TSIO-360-SB, and TSIO-360-RB reciprocating engines, with certain Hartzell Engine Technologies (HET) turbochargers, model TA0411, part number (P/N) 466642-0001; 466642-0002; 466642-0006; 466642-9001; 466642-9002; or 466642- 9006, or with certain HET model TA0411 turbochargers overhauled or repaired since August 29, 2012. SUBJECT: Airworthiness Directive 2012-24-09 ACTION: Final Rule
SUMMARY: This AD requires removing the affected turbochargers from service before further flight. This AD was prompted by a report of a turbocharger turbine wheel that failed a static strength test at its manufacturing facility. The FAA is issuing this AD to prevent turbocharger turbine wheel failure, reduction or complete loss of engine power, loss of engine oil, oil fire, and damage to the airplane.