Airworthiness Directives 2004 - Revocation and Remaking - AlliedSignal (Lycoming) Turbine Engines - ALF502 and LF507 Series Zoe has a public metadata record for this legal instrument, but accepted source text is not available in the agent mirror yet. Canonical page: https://zoelaw.ai/legislation/airworthiness-directives-2004-revocation-and-remaking-alliedsignal-lycoming-turbine-engines-alf502-a