Action
Final rule.
Summary
We are adopting a new airworthiness directive (AD) for Leonardo S.p.A. (type certificate previously held by Finmeccanica S.p.A., AgustaWestland S.p.A.) Model AW139 helicopters. This AD requires inspecting and altering the number 1 driveshaft (driveshaft). This AD was prompted by reports of scratches that were found on the driveshaft. The actions of this AD are intended to address an unsafe condition on these products.