Airworthiness Directives; McDonnell Douglas Model DC-8-11, DC-8-12, DC-8-21, DC-8-31, DC-8-32, DC-8-33, DC-8-41, DC-8-42, DC-8-43, DC-8F-54, and DC-8F-55 Airplanes; and DC-8-50, DC-8-60, DC-8-60F, DC-8-70, and DC-8-70F Series Airplanes
airworthiness · Rule · Final rule. · Published 2005-07-28 · Effective 2005-09-01 · 70 FR 43628
Document
Document number
05-14684
Federal Register citation
70 FR 43628
Type
Rule
Action
Final rule.
Category
airworthiness
Publication date
2005-07-28
Effective date
2005-09-01
FAA docket
Docket No. 2001-NM-343-AD
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to certain McDonnell Douglas airplane models. This AD requires a one-time test to determine the material of the upper inboard spar cap of the wing, and corrective actions if necessary. This action is necessary to prevent stress corrosion cracking in the forward tang of the upper inboard spar cap of the wing, which could result in structural damage to adjacent components of the wing and consequent reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.