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Airworthiness Directive

AD 98-21-36 63 FR 55783 Active

Federal Aviation Administration · 14 CFR part 39

FR document
98-27760
Amendment
39-10845
Published
1998-10-19
Effective
1998-11-23
Models covered
1
Last live check
2026-09-30

Printed from https://aircraftdirectives.com/ad/98-21-36 · 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

98-21-36

FR doc 98-27760 · 63 FR 55783

AD 98-21-36Published 1998-10-19Effective 1998-11-23

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 removing and replacing the cyclic control pilot's grip assembly (grip assembly) with an airworthy grip assembly.

Full official abstract

This amendment adopts a new airworthiness directive (AD), applicable to Robinson Helicopter Company (Robinson) Model R44 helicopters, that requires removing and replacing the cyclic control pilot's grip assembly (grip assembly) with an airworthy grip assembly. This amendment is prompted by a report of a crack in the welded corner of a grip assembly. The actions specified by this AD are intended to prevent use of a grip assembly that may crack, resulting in failure of the grip assembly and subsequent loss of control of the helicopter.

More directives for Robinson R44

  1. AD 2025-11-07 Airworthiness Directives; Robinson Helicopter Company Helicopters 2025-06-06
  2. AD 2024-23-01 Airworthiness Directives; Robinson Helicopter Company 2024-12-03
  3. AD 2024-20-03 Airworthiness Directives; Robinson Helicopter Company Helicopters 2024-10-24
  4. AD 2024-19-11 Airworthiness Directives; Robinson Helicopter Company Helicopters 2024-09-26
  5. AD 2024-04-02 Airworthiness Directives; Robinson Helicopter Company Helicopters 2024-02-27

All Robinson R44 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 98-21-36 (opens in a new tab)

Applies to 1 model in our index