Airworthiness Directive 2000-05-16
recurringAirworthiness Directives; Sikorsky Model S-61 Helicopters
What this AD requires
This amendment adopts a new airworthiness directive (AD) applicable to Sikorsky Model S-61 helicopters. This action requires inspecting certain pylon upper and lower hinge web fittings (web fittings) for corrosion or a crack and either repairing certain web fittings or replacing any unairworthy web fittings with airworthy web fittings. The AD also requires creating a log card or equivalent record and implementing a recurring inspection of the web fittings. This amendment is prompted by the discovery of extensive cracking in the area of the web fittings. The actions specified in this AD are intended to prevent structural failure of the tail boom due to a crack or corrosion of certain web fittings and subsequent loss of control of the helicopter.
Which aircraft AD 2000-05-16 applies to
Applies to helicopters with pylon upper/lower hinge web fittings P/N S6120-76261-012/-013 (upper) or S6120-76262-012/-013 (lower); inspect/repair/replace per Sikorsky Alert SB 61B20-33. Specific model list is in a preceding applicability section not captured in this excerpt.
Whether AD 2000-05-16 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.