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Airworthiness Directive

AD 2021-04-12 86 FR 13162 Active

Federal Aviation Administration · 14 CFR part 39

Requires installing a certain part numbered kit and removing parts from service or replacing a certain part- numbered T/R drive shaft assembly.

Federal Register (opens in a new tab)FAA DRS (opens in a new tab)

FR document
2021-03656
Amendment
39-21433
Published
2021-03-08
Effective
2021-04-12
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2021-04-12 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

This page is a reference Record, not an airworthiness or compliance determination. Official FAA and manufacturer sources control over our restatement, subject to governing law. Check applicability, current requirements and incorporated documents before acting. The owner or operator remains responsible for airworthiness and required records under 14 CFR 91.403 and 91.417, as applicable. Terms of Use: /terms.

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AD

2021-04-12

FR doc 2021-03656 · 86 FR 13162

AD 2021-04-12Published 2021-03-08Effective 2021-04-12

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 installing a certain part numbered kit and removing parts from service or replacing a certain part- numbered T/R drive shaft assembly.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R66 helicopters. This AD was prompted by reports of tail rotor (T/R) drive shaft forward hanger bearing failures. This AD requires installing a certain part numbered kit and removing parts from service or replacing a certain part- numbered T/R drive shaft assembly. This AD also prohibits the installation of certain parts. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for Robinson R66

  1. AD 2024-04-02 Airworthiness Directives; Robinson Helicopter Company Helicopters Effective 2024-04-02
  2. AD 2022-19-12 Airworthiness Directives; Robinson Helicopter Company Helicopters Effective 2022-10-20
  3. AD 2019-07-02 Airworthiness Directives; Robinson Helicopter Company Helicopters Effective 2019-05-17
  4. AD 2016-26-04 Airworthiness Directives; Robinson Helicopter Company Helicopters Effective 2017-02-08

All Robinson R66 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