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Airworthiness Directive

AD 2021-24-09 86 FR 66158 Superseded

Federal Aviation Administration · 14 CFR part 39

Requires a visual inspection of the M/R clevis, rod end, and a certain part-numbered universal bearing, performing a purge grease, and performing a magnetic particle inspection of each M/R clevis.

Superseded by AD 2025-09-03Federal Register (opens in a new tab)

FR document
2021-25489
Amendment
39-21830
Published
2021-11-22
Effective
2021-12-07
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2021-24-09 · 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

2021-24-09

FR doc 2021-25489 · 86 FR 66158

AD 2021-24-09Published 2021-11-22Effective 2021-12-07

Superseded by 2025-09-03

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 a visual inspection of the M/R clevis, rod end, and a certain part-numbered universal bearing, performing a purge grease, and performing a magnetic particle inspection of each M/R clevis.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited Model 430 helicopters. This AD was prompted by an in-flight failure of the main rotor (M/R) pitch link clevis (clevis) due to fatigue damage and excessive wear. This AD requires a visual inspection of the M/R clevis, rod end, and a certain part-numbered universal bearing, performing a purge grease, and performing a magnetic particle inspection of each M/R clevis. Depending on the visual inspection and magnetic particle inspection results, this AD requires removing certain parts from service, replacing certain parts, and performing additional actions. This AD also requires recurring inspections of each M/R clevis and each universal bearing. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for Bell 430

  1. AD 2026-13-12 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2026-08-11
  2. AD 2025-09-03 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2025-05-13
  3. AD 2021-19-01 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2021-10-13
  4. AD 2016-21-01 Airworthiness Directives; Bell Helicopter Textron Helicopters Effective 2016-11-18
  5. AD 2016-08-17 Airworthiness Directives; Bell Helicopter Textron Canada Helicopters Effective 2016-05-31

All Bell 430 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2021-24-09 (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