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Airworthiness Directive

AD 99-22-13 64 FR 57971 Active

Federal Aviation Administration · 14 CFR part 39

FR document
99-27790
Amendment
39-11391
Published
1999-10-28
Effective
1999-12-02
Models covered
1
Last live check
2026-10-03

Printed from https://aircraftdirectives.com/ad/99-22-13 · 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

99-22-13

FR doc 99-27790 · 64 FR 57971

AD 99-22-13Published 1999-10-28Effective 1999-12-02

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 visually inspecting the vertical fin (fin) for reduced skin thickness; repairing or replacing the fin, if necessary; and identifying fins that have been inspected or repaired.

Full official abstract

This amendment adopts a new airworthiness directive (AD), applicable to BHTC Model 407 helicopters, that requires visually inspecting the vertical fin (fin) for reduced skin thickness; repairing or replacing the fin, if necessary; and identifying fins that have been inspected or repaired. This amendment is prompted by a report of an inboard skin damaged during production. The actions specified by this AD are intended to detect fin assemblies with reduced skin thickness which, if not corrected, reduce the strength of the skin and could lead to failure of the fin and loss of control of the helicopter.

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  5. AD 2023-17-51 Airworthiness Directives; Bell Textron Canada Limited Helicopters 2023-09-06

All Bell 407 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