Summary
This document proposes the supersedure of an existing airworthiness directive (AD), applicable to certain Textron Lycoming fuel injected reciprocating engines, that currently requires inspection, and replacement if necessary, of externally mounted fuel injector fuel lines. Since the issuance of the existing AD, additional engine series have been identified with the potential for the same problem and necessitate being included in the list of Textron Lycoming fuel injected reciprocating engine series, to the AD's applicability. This proposal is prompted by the need to ensure that the additional Textron Lycoming fuel injected engine series listed in this proposed rule receive the same inspections as series covered by the current AD. The actions specified by the proposed AD are intended to prevent failure of the fuel injector fuel lines allowing fuel to spray into the engine compartment, resulting in an engine fire.