AD NUMBER: 2005-13-38 MANUFACTURER: Bombardier SUBJECT: Airworthiness Directive 2005-13-38 SUMMARY: The FAA is adopting a new airworthiness
directive (AD) for certain Bombardier Model DHC-8-100, DHC-8-200,
and DHC-8-300 series airplanes. This AD requires revising the
airworthiness limitations section of the Instructions for Continued
Airworthiness by incorporating new and revised structural
inspection procedures and new and revised inspection intervals for
the longitudinal skin joints in the fuselage pressure shell.
This proposed AD also requires phase-in inspections and repair
of any crack found during any phase-in inspection. This AD is
prompted by a report indicating that visual inspections were not
adequate for detecting fatigue cracking in portions of the
longitudinal skin joints in the fuselage pressure shell. We are
issuing this AD to detect and correct fatigue cracking of the
longitudinal skin joints in the fuselage pressure shell, which
could affect the structural integrity of the airplane, and result
in loss of cabin pressurization during flight.