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Airworthiness Directive

AD 2012-22-11 77 FR 68055 Active

Federal Aviation Administration · 14 CFR part 39

Requires a repetitive inspection of the collective lever for a crack, and if there is a crack, before further flight, replacing the collective lever with an airworthy collective lever.

Federal Register (opens in a new tab)

FR document
2012-27059
Amendment
39-17247
Published
2012-11-15
Effective
2012-12-20
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/2012-22-11 · 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

2012-22-11

FR doc 2012-27059 · 77 FR 68055

AD 2012-22-11Published 2012-11-15Effective 2012-12-20

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 repetitive inspection of the collective lever for a crack, and if there is a crack, before further flight, replacing the collective lever with an airworthy collective lever.

Full official abstract

We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron (BHT) Model 412, 412EP, and 412CF helicopters. This AD requires a repetitive inspection of the collective lever for a crack, and if there is a crack, before further flight, replacing the collective lever with an airworthy collective lever. This AD was prompted by a reported failure of a collective lever. The actions are intended to detect a crack in the collective lever, which could lead to failure of the collective lever and subsequent loss of control of the helicopter.

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All Bell 412 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2012-22-11 (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