Airworthiness Directive 2000-20-19

one-time
Official AD 2000-20-19 · FR doc 00-26234 · 2000-10-16 · airframe

Airworthiness Directives; Eurocopter France Model AS-350B, BA, B1, B2, B3, C, D, and D1, and AS-355E, F, F1, F2 and N Helicopters

What this AD requires

This amendment supersedes an existing airworthiness directive (AD) for Eurocopter France Model AS-350B, BA, B1, B2, C, D, and D1, and AS-355E, F, F1, and F2 helicopters. That AD currently requires inspections of the main rotor head components, the main gearbox (MGB) suspension bars, and the ground resonance prevention system components. This amendment requires those same inspections, but would also apply to Model AS-350B3 and AS-355N helicopters. This amendment is prompted by the inadvertent omission of those model helicopters from the previous AD. The actions specified by this AD are intended to prevent ground resonance due to reduced structural stiffness, which could lead to failure of a main rotor head or MGB suspension component and subsequent loss of control of the helicopter.

Which aircraft AD 2000-20-19 applies to

ModelsAS-350B, AS-350BA, AS-350B1, AS-350B2, AS-350B3, AS-350C, AS-350D, AS-350D1, AS-355E, AS-355F, AS-355F1, AS-355F2, AS-355N, AS-350, AS-355

Requires recurring inspection/rework/replacement of main rotor head components, MGB suspension struts, and landing-gear ground-resonance components per Aerospatiale SB 01.17a (AS-350 models) or SB 01.14a (AS-355 models), to prevent ground resonance from reduced structural stiffness.

Whether AD 2000-20-19 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:

Method of complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 2000-20-19 complied with on your aircraft?

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.