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Airworthiness Directive

AD 99-21-04 64 FR 53189 Active

Federal Aviation Administration · 14 CFR part 39

Requires repetitive detailed visual inspections of the fuselage belly fairing support structure to detect cracks; and corrective action, if necessary.

Federal Register (opens in a new tab)

FR document
99-25595
Amendment
39-11347
Published
1999-10-01
Effective
1999-11-05
Models covered
1

Last live check: 2026-10-04

Printed from https://aircraftdirectives.com/ad/99-21-04 · AircraftDirectives restates official FAA and manufacturer records; the official sources named on this sheet control. Not an airworthiness determination.

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AD

99-21-04

FR doc 99-25595 · 64 FR 53189

AD 99-21-04Published 1999-10-01Effective 1999-11-05

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 repetitive detailed visual inspections of the fuselage belly fairing support structure to detect cracks; and corrective action, if necessary.

Full official abstract

This amendment adopts a new airworthiness directive (AD), applicable to certain Airbus Model A330-301, and Model A340-211, -212, -311, and -312 series airplanes, that requires repetitive detailed visual inspections of the fuselage belly fairing support structure to detect cracks; and corrective action, if necessary. This amendment also provides an optional terminating action for the repetitive inspections. This amendment is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by this AD are intended to detect and correct fatigue cracking of the fuselage belly fairing support structure, which could result in reduced structural integrity of the fuselage belly fairing support structure.

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All Bell 205 / 212 directives

View on Federal Register (opens in a new tab) Search DRS manually for AD 99-21-04 (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