99-03-07
FR doc 99-2497 · 64 FR 5587AD 99-03-07Published 1999-02-04Effective 1999-03-11
Requires removal of all attachment bolts and pre-load indicating (PLI) washers of the wing-to-fuselage attachment fittings; a one-time visual inspection to detect corrosion of each attachment bolt; and installation of new…
Full official abstract
This amendment adopts a new airworthiness directive (AD), applicable to all Bombardier Model DHC-7 series airplanes, that requires removal of all attachment bolts and pre-load indicating (PLI) washers of the wing-to-fuselage attachment fittings; a one-time visual inspection to detect corrosion of each attachment bolt; and installation of new attachment bolts and PLI washers of the wing-to- fuselage attachment fittings. 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 prevent failure of the attachment bolts of the wing-to-fuselage attachment fittings due to stress corrosion cracking, which could result in reduced structural integrity of the airplane.
More directives for de Havilland DHC-7 Dash 7
- AD 2015-20-06 Airworthiness Directives; Viking Air Limited (Type Certificate Previousl... 2015-10-06
- AD 2010-23-21 Airworthiness Directives; Viking Air Limited (Type Certificate Previousl... 2010-11-17
- AD 2009-06-03 Airworthiness Directives; Viking Air Limited Model DHC-7 Airplanes 2009-03-16
- AD 2007-20-02 Airworthiness Directives; Viking Air Limited Model DHC-7 Airplanes 2007-09-26
- AD 2006-12-04 Airworthiness Directives; Viking Air Limited Model DHC-7 Airplanes 2006-06-06
