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Airworthiness Directive

AD 99-18-02 64 FR 47362 Active

Federal Aviation Administration · 14 CFR part 39

Requires inspecting the vertical fin spar cap (spar cap) for cracking, corrosion, or disbonding; modifying the vertical fin; and replacing the left-hand spar cap.

Federal Register (opens in a new tab)

FR document
99-22077
Amendment
39-11268
Published
1999-08-31
Effective
1999-10-05
Models covered
1

Last live check: 2026-10-04

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AD

99-18-02

FR doc 99-22077 · 64 FR 47362

AD 99-18-02Published 1999-08-31Effective 1999-10-05

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 the vertical fin spar cap (spar cap) for cracking, corrosion, or disbonding; modifying the vertical fin; and replacing the left-hand spar cap.

Full official abstract

This amendment adopts a new airworthiness directive (AD), applicable to Bell Helicopter Textron, Inc. (BHTI) Model 205A-1 and 205B helicopters, that requires inspecting the vertical fin spar cap (spar cap) for cracking, corrosion, or disbonding; modifying the vertical fin; and replacing the left-hand spar cap. This amendment is prompted by five accidents involving helicopters of similar type design. The actions specified by this AD are intended to detect fatigue cracking or corrosion on the spar cap, which could lead to failure of the vertical fin spar, loss of the tail rotor, and subsequent loss of control of the helicopter.

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All Bell 205 / 212 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 99-18-02 (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