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Airworthiness Directive

AD 2013-05-14 78 FR 17593 Active

Federal Aviation Administration · 14 CFR part 39

Requires establishing a lower life limit on certain swashplate outer ring assemblies (outer ring), revising the retirement life on the components' history card or equivalent record, and revising the maintenance manual or…

Federal Register (opens in a new tab)

FR document
2013-05875
Amendment
39-17386
Published
2013-03-22
Effective
2013-04-26
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/2013-05-14 · 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

2013-05-14

FR doc 2013-05875 · 78 FR 17593

AD 2013-05-14Published 2013-03-22Effective 2013-04-26

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 lower life limit on certain swashplate outer ring assemblies (outer ring), revising the retirement life on the components' history card or equivalent record, and revising the maintenance manual or Instructions for Continued Airworthiness (ICA).

Full official abstract

We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron, Inc. (Bell), Model 412 and 412EP helicopters. This AD requires establishing a lower life limit on certain swashplate outer ring assemblies (outer ring), revising the retirement life on the components' history card or equivalent record, and revising the maintenance manual or Instructions for Continued Airworthiness (ICA). This AD also prohibits installing these outer rings on any helicopter. This AD was prompted by reports of cracking in the outer rings. The actions are intended to prevent failure of an outer ring because of cracking, which could lead to the loss of main rotor (M/R) blade pitch control and subsequent loss of helicopter control.

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 2013-05-14 (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