Airworthiness Directive

AD 2021-19-08 86 FR 49915

Federal Aviation Administration · 14 CFR part 39

FR document
2021-19300
Amendment
39-21726
Published
2021-09-07
Models covered
1
Last live check
2026-08-17
AD

2021-19-08

FR doc 2021-19300 · 86 FR 49915

AD 2021-19-08Published 2021-09-07Effective 2021-09-22

Superseded by 2022-19-12

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.

Requires checking each blade for any crack and removing any cracked blade from service.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain Robinson Helicopter Company Model R44 and R44 II helicopters. This AD was prompted by reports of cracked tail rotor blades (blades). This AD requires checking each blade for any crack and removing any cracked blade from service. This AD also requires removing all affected blades from service and prohibits installing any affected blade on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.

Applies to 1 model in our index