AircraftDirectives
Airworthiness Directive

AD 96-09-29 61 FR 19809

Federal Aviation Administration · 14 CFR part 39

FR document
96-10870
Amendment
39-9605
Published
1996-05-03
Models covered
1
Last live check
2026-08-17

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AD

96-09-29

FR doc 96-10870 · 61 FR 19809

AD 96-09-29Published 1996-05-03Effective 1996-06-07

Requires replacement of the upper V-belt sheave (sheave).

Full official abstract

This amendment adopts a new airworthiness directive (AD), applicable to Robinson Helicopter Company (Robinson) Model R22 helicopters, that requires replacement of the upper V-belt sheave (sheave). This amendment is prompted by three reports of cracks in the flange of the sheave. The actions specified by this AD are intended to prevent failure of the sheave, which could result in damage to other drive system components, and subsequent loss of control of the helicopter.

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Applies to 1 model in our index