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Airworthiness Directive

AD 98-22-16 63 FR 62931 Active

Federal Aviation Administration · 14 CFR part 39

Requires main rotor blade inspections and replacement if a crack is found.

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FR document
98-30046
Amendment
39-10874
Published
1998-11-10
Effective
1998-11-10
Models covered
1

Last live check: 2026-08-19

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AD

98-22-16

FR doc 98-30046 · 63 FR 62931

AD 98-22-16Published 1998-11-10Effective 1998-11-10

Supersedes 98-12-19

Supersedence is read from the Federal Register text of the newer AD — the FAA publishes no structured field for it — and names only ADs held in our index.

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 main rotor blade inspections and replacement if a crack is found.

Full official abstract

This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 98-22-16 which was sent previously to all known U.S. owners and operators of RHC Model R44 helicopters by individual letters. This amendment supersedes AD 98-12- 19, issued August 5, 1998, applicable to RHC Model R44 helicopters, that currently requires main rotor blade inspections and replacement if a crack is found. This amendment requires the same inspections as AD 98-12-19, but mandates replacement of all the affected main rotor blades prior to further flight after November 15, 1998. This amendment is prompted by an incident in which a crack was discovered in a main rotor blade. The actions specified by this AD are intended to prevent failure of a main rotor blade and subsequent loss of control of the helicopter.

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All Robinson R44 directives

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Applies to 1 model in our index