AD 2024-20-07: Various Helicopters

This AD applies to the helicopters identified in paragraphs (c)(1) through (8) of this AD, certificated in any category. (1) Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, AS350D, AS350D1, AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters modified by Supplemental Type Certificate (STC) SR00831LA; Model EC120B helicopters modified by STC SR00780LA; and Model EC130B4 helicopters modified by STC SR01687LA. Note 1 to paragraph (c)(1): Helicopters with an AS350B3e designation are Model AS350B3 helicopters. (2) Airbus Helicopters Deutschland GmbH (AHD) Model BO-105A, BO-105C, BO-105S, and BO-105LS A-3 helicopters modified by STC SR00856LA; Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, and EC135T3 helicopters modified by STC SR01855LA; and Model MBB-BK 117 C-2 and MBB-BK 117 D-2 helicopters modified by STC SR02244LA. Note 2 to paragraph (c)(2): Helicopters with an EC135P3H designation are Model EC135P3 helicopters; helicopters with an EC135T3H designation are Model EC135T3 helicopters, and helicopters with an MBB-BK117 C-2e designation are Model MBB-BK117 C-2 helicopters. (3) Bell Textron Inc., Model 210, 212, 412, 412CF, and…