Airworthiness Directives; Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes)
airworthiness · Rule · Final rule; request for comments. · Published 2006-03-31 · Effective 2006-04-17 · 71 FR 16206
Document
Document number
06-3063
Federal Register citation
71 FR 16206
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Publication date
2006-03-31
Effective date
2006-04-17
FAA docket
Docket No. FAA-2006-24124
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Model A300-600 series airplanes. This AD requires modifying nine bolt holes in the vertical flange to prevent cracking before the inspection threshold of AD 98-18-02. This AD results from reports of cracking in the vertical web of the center spar sealing angles of the wing earlier than the inspection interval specified in the existing AD. We are issuing this AD to prevent crack formation in the sealing angles; such cracks could rupture the sealing angle and lead to subsequent crack formation in the bottom skin of the wing, and resultant reduced structural integrity of the center spar section of the wing.