Airworthiness Directive 2008-14-06
one-timeAirworthiness Directives; Bell Helicopter Textron Canada Model 206L, L-1, L-3, L-4, and 407 Helicopters
What this AD requires
We are adopting a new airworthiness directive (AD) for the specified Bell Helicopter Textron Canada (BHTC) helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product. The Aviation Authority of Canada with whom we have a bilateral agreement states in the MCAI: "Horizontal stabilizers part numbers 206-023-119-167 and 407-023-801-109 may have manufacturing flaws on the inside surface of the upper and/or lower skin at the tailboom attachment inserts. These flaws may result in cracking of the skin and failure of the horizontal stabilizer." The manufacturer's service information states that in addition to cracks, the horizontal stabilizer may have deformation or debonding around and between the inserts. We are issuing this AD to require actions to correct the unsafe condition on these products.
Which aircraft AD 2008-14-06 applies to
Applies only to Model 206L/206L-1/206L-3/206L-4 helicopters with horizontal stabilizer P/N 206-023-119-167 installed, or Model 407 helicopters with horizontal stabilizer P/N 407-023-801-109 installed. These horizontal stabilizers may have manufacturing flaws (cracking, deformation, or debonding) on the inside skin surface at the tailboom attachment inserts.
Whether AD 2008-14-06 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.