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Airworthiness Directive

AD 2016-21-01 81 FR 70928 Active

Federal Aviation Administration · 14 CFR part 39

Requires establishing a life limit for a certain main rotor hub attachment bolt (bolt) and removing from service each bolt that has met or exceeded its life limit.

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

FR document
2016-24741
Amendment
39-18682
Published
2016-10-14
Effective
2016-11-18
Models covered
1

Last live check: 2026-08-19

Printed from https://aircraftdirectives.com/ad/2016-21-01 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

2016-21-01

FR doc 2016-24741 · 81 FR 70928

AD 2016-21-01Published 2016-10-14Effective 2016-11-18

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 establishing a life limit for a certain main rotor hub attachment bolt (bolt) and removing from service each bolt that has met or exceeded its life limit.

Full official abstract

We are adopting a new airworthiness directive (AD) for certain Bell Helicopter Textron (Bell) Model 430 helicopters. This AD requires establishing a life limit for a certain main rotor hub attachment bolt (bolt) and removing from service each bolt that has met or exceeded its life limit. This AD was prompted by a documentation error that omitted the life limit of a certain part-numbered bolt from the Airworthiness Limitations section of the maintenance manual. The actions of this AD are intended to establish a life limit for a certain part-numbered bolt to prevent failure of a bolt, failure of a main rotor hub, and subsequent loss of control of a helicopter.

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 2021-24-09 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2021-12-07
  4. AD 2021-19-01 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2021-10-13
  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) 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