Airworthiness Directive 2015-23617
one-timeAirworthiness Directives; Lycoming Engines Fuel Injected Reciprocating Engines
What this AD requires
We are superseding airworthiness directive (AD) 2011-26-04 for certain fuel injected reciprocating engines manufactured by Lycoming Engines. AD 2011-26-04 required inspection, replacement if necessary, and proper clamping of externally mounted fuel injector fuel lines. This new AD retains the requirements of AD 2011-26-04, and expands the list of affected engine models. This AD was prompted by revised service information that added engine models to the applicability. We are issuing this AD to prevent failure of the fuel injector fuel lines, which could lead to uncontrolled engine fire, engine damage, and damage to the airplane.
Which aircraft AD 2015-23617 applies to
Applies only to the listed fuel injected reciprocating engine models that have externally mounted fuel injector fuel lines (stainless steel tube assembly) installed. Note: source table for the IO-540 model list is truncated in the source text and may be incomplete.
Whether AD 2015-23617 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.