Airworthiness Directive 2001-13-02
one-timeAirworthiness Directives; Bell Helicopter Textron Canada Model 407 Helicopters
What this AD requires
This amendment adopts a new airworthiness directive (AD) for Bell Helicopter Textron Canada (BHTC) Model 407 helicopters that requires replacing certain cockpit warning horns. This amendment is prompted by reports that pilots have had difficulty in distinguishing between the FADEC Fail horn, the Engine Out horn, and the Low Rotor RPM horn. The actions specified by this AD are intended to assist the pilot in properly identifying a specific cockpit warning horn (horn) and prevent an inappropriate pilot response to a horn, which could cause an engine overspeed and subsequent uncommanded reduction to flight-idle engine power.
Which aircraft AD 2001-13-02 applies to
Cross-reference boilerplate only; model list precedes excerpt and was not captured. Requires replacing the FADEC Fail Horn, Low Rotor RPM Horn, and Engine Out Horn (P/Ns at left) and installing terminal junctions per Bell Helicopter Textron Alert Service Bulletin No. 407-97-12, dated October 7, 1997.
Whether AD 2001-13-02 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.