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Airworthiness Directive

AD 2000-02-12 65 FR 8032 Active

Federal Aviation Administration · 14 CFR part 39

Requires inspecting engine oil cooler blower shaft bearings (bearings) for roughness at specified time intervals and replacing any rough bearings before further flight.

Federal Register (opens in a new tab)

FR document
00-3793
Amendment
39-11579
Published
2000-02-17
Effective
2000-03-03
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/2000-02-12 · 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

2000-02-12

FR doc 00-3793 · 65 FR 8032

AD 2000-02-12Published 2000-02-17Effective 2000-03-03

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 inspecting engine oil cooler blower shaft bearings (bearings) for roughness at specified time intervals and replacing any rough bearings before further flight.

Full official abstract

This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 2000-02-12, which was sent previously to all known U.S. owners and operators of Bell Helicopter Textron Canada (BHTC) Model 407 helicopters by individual letters. This AD requires inspecting engine oil cooler blower shaft bearings (bearings) for roughness at specified time intervals and replacing any rough bearings before further flight. This amendment is prompted by several bearing failures. The actions specified by this AD are intended to prevent bearing failure, loss of tail rotor drive, and a subsequent forced landing.

More directives for Bell 407

  1. AD 2026-14-07 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2026-08-21
  2. AD 2026-10-04 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2026-06-25
  3. AD 2025-13-01 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2025-07-08
  4. AD 2024-10-12 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2024-08-22
  5. AD 2023-17-51 Airworthiness Directives; Bell Textron Canada Limited Helicopters Effective 2023-09-21

All Bell 407 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 2000-02-12 (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