Printed headline: 42.420 The Australian Civil Aviation Safety Authority has released new guidance for Civil Aviation Safety Regulation Part 42, which governs continuing airworthiness requirements for aircraft and aeronautical products. The revision provides an acceptable means of compliance (AMC) for 42.420, which requires an “authorized release certificate” for new, non-standard parts. The new guidance—AMC 42.420(5)(a)(i)—offers a compliance means for entities to use ...