Airworthiness Directives; Airbus Helicopters

FAA / Federal Register · 2020-12028

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Helicopters Model AS332C1 and AS332L1 helicopters. This proposed AD was prompted by a report that the affected helicopters use the same "flight/ground" logic signal instead of independent redundant signals. This proposed AD would require amending the emergency procedures of the rotorcraft flight manual (RFM) for your helicopter, a wiring modification of the "flight/ground" logic signal source of the attitude heading and reference system (AHRS) 1, and then removal of the amendment to the RFM for your helicopter. The FAA is proposing this AD to address the unsafe condition on these products.