Airworthiness Directives; Teledyne Continental Motors O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 Series Reciprocating Engines
airworthiness · Rule · Final rule; request for comments. · Published 2009-09-22 · Effective 2009-10-07 · 74 FR 48141
Document
Document number
E9-22287
Federal Register citation
74 FR 48141
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Publication date
2009-09-22
Effective date
2009-10-07
FAA docket
Docket No. FAA-2009-0367
Abstract
The FAA is adopting a new airworthiness directive (AD) for Teledyne Continental Motors (TCM) O-470, IO-470, TSIO-470, IO-520, TSIO-520, IO-550, and IOF-550 series reciprocating engines with TCM EQ3 cylinders installed. This AD requires initial and repetitive visual inspections of TCM EQ3 cylinders for cracks. This AD also requires removal of all EQ3 cylinders as terminating action to the repetitive visual inspections. This AD results from reports of 35 EQ3 cylinders found cracked. We are issuing this AD to prevent loss of engine power due to cracks in the cylinder head, possible engine failure, and fire in the engine compartment.