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Airworthiness Directive

AD 99-02-02 64 FR 2558 Active

Federal Aviation Administration · 14 CFR part 39

Requires initial and repetitive inspections of the forward flexplate (flexplate) at specified time intervals.

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FR document
99-910
Amendment
39-10991
Published
1999-01-15
Effective
1999-02-01
Models covered
1

Last live check: 2026-08-19

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AD

99-02-02

FR doc 99-910 · 64 FR 2558

AD 99-02-02Published 1999-01-15Effective 1999-02-01

FAA rule - 14 CFR 39

FAA rule. Compliance with an applicable AD is required under 14 CFR 39.7. Check its effective date, applicability, compliance times and current status.

Requires initial and repetitive inspections of the forward flexplate (flexplate) at specified time intervals.

Supersedes an earlier directive. See the official text.

Full official abstract

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.

More directives for Robinson R22

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All Robinson R22 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab) Print AD packet (opens the full Federal Register document in a new tab)

Applies to 1 model in our index