Summary
We propose to adopt a new airworthiness directive (AD) for certain AgustaWestland S.p.A. (AgustaWestland) Model AW189 helicopters. This proposed AD would require replacing the seal and filler wedges of all emergency exit windows. The proposed actions are prompted by a report that some windows were improperly glued when installed. The actions of this proposed AD are intended to correct an unsafe condition on these products.