Airworthiness Directive · Amendment 39-11112 · Eurocopter France Model SA. 3160, SA. 316B, SA. 316C, and SA. 319B Helicopters
Eurocopter France Model SA. 3160, SA. 316B, SA. 316C, and SA. 319B Helicopters
Model SE. 3160, SA. 316B, SA. 316C, and SA. 319B helicopters, with main rotor blade, part numbers (P/N) 3160S11- 10000-all part numbers, 3160S11-30000-all part numbers, 3160S11- 35000-all part numbers, 3160S11-40000-all part numbers, 3160S11- 45000-all part numbers, 3160S11-50000-all part numbers, and 3160S11- 55000-all part numbers, installed, certificated in any category.
This amendment adopts a new airworthiness directive (AD) that is applicable to Eurocopter France Model SA. 3160, SA. 316B, SA. 316C, and SA. 319B helicopters. This action requires inspecting the spar skin and main rotor blade (blade) root reinforcement strip area for a bonding separation, corrosion, or a crack, and replacing the blade, if necessary. This amendment is prompted by the in-flight failure of a blade. The actions specified in this AD are intended to detect a bonding separation, corrosion, or a crack in the area of the blade root reinforcement strip, which could result in failure of the blade and subsequent loss of control of the helicopter.
