Is AD 99-02-02 a recurring Airworthiness Directive?

Yes — AD 99-02-02 requires a repetitive inspection. Next-due depends on the aircraft's time in service.

Which aircraft does AD 99-02-02 apply to?

AD 99-02-02 applies to Robinson — models R22. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 99-02-02

recurring

Official AD 99-02-02 · FR doc 99-910 · 1999-01-15 · airframe

Airworthiness Directives; Robinson Helicopter Company (RHC) Model R22 Helicopters

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), applicable to RHC Model R22 helicopters, that currently requires initial and repetitive inspections of the forward flexplate (flexplate) at specified time intervals. This amendment also supersedes an existing priority letter AD that requires, within 25 hours time-in-service (TIS) or 15 calendar days, whichever occurs first, replacing the flexplate with an airworthy flexplate. This amendment requires the same replacement as the priority letter AD. This amendment is prompted by an accident in which the flexplate failed, causing loss of main rotor drive and rupture of the fuel tank. The actions specified by this AD are intended to prevent failure of the flexplate, which could result in failure of the main rotor drive system and subsequent loss of control of the helicopter.

Repetitive inspection. Re-inspect. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 99-02-02 applies to

MakesRobinson

ModelsR22

Part-conditional — A947-1, A193-1, A947-2, A193-2.

Applies to R22 helicopters with forward flexplate P/N A947-1 or A193-1 and intermediate flexplate P/N A947-2 or A193-2 installed; requires replacement with zero-TIS airworthy flexplate P/N A947-1E or A947-1F per Robinson SB-75.

Whether AD 99-02-02 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:

Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.

Date — When the work was done.

Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.

Signature & certificate — The A&P/IA who returned it to service, with certificate number.

Is AD 99-02-02 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.