Airworthiness Directives; AgustaWestland S.p.A. Helicopters

We propose to adopt a new airworthiness directive (AD) for AgustaWestland S.p.A. (AgustaWestland) Model AW189 helicopters. This proposed AD would require replacing the tail plane lower fitting with an improved tail plane lower fitting. This proposed AD is prompted by reports of cracks on the tail plane fittings of Model AW189 helicopters. The actions of this proposed AD are intended to correct an unsafe condition on these products.