# Airworthiness Directives; Lycoming Engines and Continental Motors, Inc. Reciprocating Engines
> **Rule** · Final rule; request for comments. · Published 2012-12-05 · Effective 2012-12-20 · 77 FR 72203
## Document
- **Document number:** 2012-29472
- **Category:** airworthiness
- **Manufacturer:** Lycoming
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 77 FR 72203
- **Publication date:** 2012-12-05
- **Effective date:** 2012-12-20
- **FAA docket:** Docket No. FAA-2012-1245
## Abstract

We are adopting a new airworthiness directive (AD) for 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. 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. We are 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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/12/05/2012-29472/airworthiness-directives-lycoming-engines-and-continental-motors-inc-reciprocating-engines)
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