Airworthiness Directive 2004-20-07
one-timeAirworthiness Directives; Bell Helicopter Textron Canada Model 222, 222B, 222U, and 230 Helicopters
What this AD requires
This amendment adopts a new airworthiness directive (AD) for the specified Bell Helicopter Textron Canada (BHTC) model helicopters that requires certain inspections of the main rotor yoke (yoke) for a crack, fretting, or buffer deterioration. If a crack is found, the AD requires replacing the yoke with an airworthy yoke before further flight. If fretting or buffer deterioration are found, the AD requires further inspecting the main rotor hub assembly (hub assembly) and repairing or replacing any unairworthy parts. Also, the AD requires a torque inspection of the flapping bearing retaining nuts at specified intervals. This amendment is prompted by the discovery of a crack in a yoke. The actions specified by this AD are intended to prevent failure of the yoke and subsequent loss of control of the helicopter.
Which aircraft AD 2004-20-07 applies to
Model 222 (S/N 47006-47089), 222B (S/N 47131-47156), and 222U (S/N 47501-47574) with main rotor hub assembly P/N 222-011-101-ALL or 222-012-101-ALL installed; Model 230 (S/N 23001-23038) with main rotor hub assembly P/N 222-012-101-ALL installed.
Whether AD 2004-20-07 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.