Leonardo S.p.A. issued Alert Service Bulletin 189-402 Revision B to address reported heavy corrosion on left-hand (P/N 8G5333A04551) and right-hand (P/N 8G5333A04351) engine mount external fittings on AW189 helicopters. If undetected, this condition could reduce engine mount structural integrity. This AD supersedes EASA AD 2025-0213, retains its requirements, and expands applicability to all serial numbers.

Applicability: All Leonardo AW189 helicopters, all serial numbers. Group 1: s/n 92001–92010; Group 2: all others.

Effective Date: 15 April 2026

View full AD on EASA MCIA: https://ad.easa.europa.eu/

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