Federal Aviation Administration January 2008 – Federal Register Recent Federal Regulation Documents

The FAA proposes to supersede an existing airworthiness directive (AD) for certain fuel injected reciprocating engines manufactured by Lycoming Engines. That AD currently requires inspection, and replacement if necessary, of externally mounted fuel injector fuel lines. This proposed AD would require the same actions but would add additional engine models, would clarify certain compliance time wording, and would exempt engines that have a Maintenance and Overhaul Manual with an Airworthiness Limitations Section that requires inspection, and replacement if necessary, of externally mounted fuel injector lines. This proposed AD results from Lycoming Engines revising their Mandatory Service Bulletin (MSB) to add new engine models requiring inspection, and from the need to clarify a repetitive inspection compliance time. We are proposing this AD to prevent failure of the fuel injector fuel lines that would allow fuel to spray into the engine compartment, resulting in an engine fire.