Summary
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model EC130B4 and EC130T2 helicopters. This proposed AD was prompted by the determination that fatigue cracks may develop at the root section of certain tail rotor blades (TRBs). This proposed AD would require repetitively fluorescent penetrant inspecting those TRBs and, depending on the results, accomplishing corrective action. This proposed AD would also prohibit installing certain TRBs unless certain actions are accomplished. These actions are specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.