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Airworthiness Directive

AD 99-23-03 64 FR 60102 Active

Federal Aviation Administration · 14 CFR part 39

FR document
99-28652
Amendment
39-11399
Published
1999-11-04
Effective
1999-11-19
Models covered
1
Last live check
2026-09-30

Printed from https://aircraftdirectives.com/ad/99-23-03 · 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

99-23-03

FR doc 99-28652 · 64 FR 60102

AD 99-23-03Published 1999-11-04Effective 1999-11-19

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 verifying the torque on each vertical fin attachment bolt (bolt); modifying the vertical fin and tailboom and replacing the attachment hardware; and re-verifying the torque on the bolts after inspecting the fittings.

Full official abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to Bell Helicopter Textron Canada (BHTC) Model 430 helicopters. This action requires verifying the torque on each vertical fin attachment bolt (bolt); modifying the vertical fin and tailboom and replacing the attachment hardware; and re-verifying the torque on the bolts after inspecting the fittings. This amendment is prompted by a report of a loose vertical fin, which was discovered during a post- flight inspection. The actions specified in this AD are intended to prevent loss of torque of the bolts, which could lead to fracture of the bolts, separation of the vertical fin from the helicopter, and subsequent loss of control of the helicopter.

More directives for Bell 430

  1. AD 2026-13-12 Airworthiness Directives; Bell Textron Canada Limited Helicopters 2026-07-07
  2. AD 2025-09-03 Airworthiness Directives; Bell Textron Canada Limited Helicopters 2025-04-28
  3. AD 2021-24-09 Airworthiness Directives; Bell Textron Canada Limited Helicopters 2021-11-22
  4. AD 2021-19-01 Airworthiness Directives; Bell Textron Canada Limited Helicopters 2021-09-08
  5. AD 2016-21-01 Airworthiness Directives; Bell Helicopter Textron Helicopters 2016-10-14

All Bell 430 directives

View on Federal Register (opens in a new tab) View this AD in FAA DRS (opens in a new tab)

Applies to 1 model in our index