Airworthiness Directives; Boeing Model 767 Series Airplanes
airworthiness · Rule · Final rule. · Published 1999-09-15 · Effective 1999-10-20 · 64 FR 49977
Document
Document number
99-23471
Federal Register citation
64 FR 49977
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Boeing Model 767 Series
Publication date
1999-09-15
Effective date
1999-10-20
FAA docket
Docket No. 98-NM-278-AD
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 767 series airplanes, that requires repetitive inspections of certain H-11 tension bolts at each side-of- body kick-load fitting and on the lower splice plate (both located on the wing rear spar) to detect damaged or broken bolts; and follow-on actions, if necessary. This amendment also requires eventual replacement of the existing bolts with new, improved bolts, which constitutes terminating action for the repetitive inspections. This amendment is prompted by a report that an operator found two broken H- 11 tension bolts on the side-of-body kick-load fitting on one airplane. The actions specified by this AD are intended to prevent cracking of the bolts due to stress corrosion, which could result in reduced structural integrity of the wing-to-body joint structure.