Airworthiness Directive 2012-07-01
one-timeAirworthiness Directives; Agusta S.p.A. Helicopters
What this AD requires
We are adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB412 helicopters with certain tail rotor blades (blades) installed. This AD requires, before further flight, removing and replacing each affected blade with an airworthy blade. This AD is prompted by incidents where a blade tip weight separated from a blade in flight on other model helicopters with common part-numbered blades. It has been determined that this unsafe condition may also exist on the specified Agusta model helicopters. The actions specified in this AD are intended to prevent loss of the blade tip weight, loss of a blade, and subsequent loss of control of the helicopter.
Which aircraft AD 2012-07-01 applies to
Applies to helicopters with specific tail rotor blades installed, identified by P/N and blade serial number: P/N 212-010-750-105 (S/N A-11923); P/N 212-010-750-105FM (S/N A-10090, A-10836, A-10857, A-11207, A-11332, A-11617, A-11828, A-12043, A-12091); P/N 212-010-750-113 (S/N A-14953, A-15090, CS-12702); P/N 212-010-750-113FM (S/N A-12240, A-12286, A-12296, A-12398, A-12640, A-12670, A-12789, A-13033, A-13088, A-13096, A-13106, A-13134, A-13199, A-13264, A-13366, A-13539); P/N 212-010-750-133 (S/N A-15602).
Whether AD 2012-07-01 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Read the full directive (Federal Register)Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.