Airworthiness Directives; Boeing Model 720 and 720B Series Airplanes
airworthiness · Rule · Final rule; request for comments. · Published 2006-03-17 · Effective 2006-04-03 · 71 FR 13747
Document
Document number
06-2545
Federal Register citation
71 FR 13747
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Boeing Model 720 and 720B Series
Publication date
2006-03-17
Effective date
2006-04-03
FAA docket
Docket No. FAA-2006-24162
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Boeing Model 720 and 720B series airplanes. This AD requires repetitive inspections for any crack, corrosion, or sign of damage (e.g., finish scratches, blistering, or signs of fuel leaking) of the front spar upper chords under the fairing web, and repair if necessary. This AD results from a report that inspections required by a previous AD action are inadequate for Boeing Model 720 and 720B series airplanes. We are issuing this AD to detect and correct any crack, corrosion, or sign of damage of the front spar upper chords under the fairing web, which could result in structural failure of the wing.