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Airworthiness Directive

AD 2022-07-03 87 FR 16388 Active

Federal Aviation Administration · 14 CFR part 39

Requires adding a permanent hours time-in-service (TIS) penalty for certain collective levers and prohibits installing those collective levers unless the permanent hours TIS penalty has been added.

Federal Register (opens in a new tab)

FR document
2022-05916
Amendment
39-21990
Published
2022-03-23
Effective
2022-04-27
Models covered
1

Last live check: 2026-10-04

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AD

2022-07-03

FR doc 2022-05916 · 87 FR 16388

AD 2022-07-03Published 2022-03-23Effective 2022-04-27

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 adding a permanent hours time-in-service (TIS) penalty for certain collective levers and prohibits installing those collective levers unless the permanent hours TIS penalty has been added.

Full official abstract

The FAA is adopting a new airworthiness directive (AD) for Bell Textron Inc., Model 412, 412EP, and 412CF helicopters. This AD was prompted by evaluation results showing flight loads that impact the collective lever fatigue life. This AD requires adding a permanent hours time-in-service (TIS) penalty for certain collective levers and prohibits installing those collective levers unless the permanent hours TIS penalty has been added. The FAA is issuing this AD to address the unsafe condition on these products.

More directives for Bell 412

  1. AD 2024-16-19 Airworthiness Directives; Bell Textron Inc. Helicopters Effective 2024-11-08
  2. AD 2024-16-01 Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously... Effective 2024-09-04
  3. AD 2022-20-14 Airworthiness Directives; Bell Textron Inc., Helicopters and Various Res... Effective 2022-12-27
  4. AD 2022-22-12 Airworthiness Directives; Bell Textron Inc., Erickson 214 Holdings, LLC,... Effective 2022-11-22
  5. AD 2022-11-19 Airworthiness Directives; Bell Textron Inc. Helicopters Effective 2022-07-06

All Bell 412 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2022-07-03 (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