AD 2020-12-13
Effective 09/10/2020 · Published 08/06/2020
Airworthiness Directives; Bombardier, Inc., Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes. This AD was prompted by reports that during airplane wing fatigue testing, fatigue cracks were found on the lower right- hand-side wing plank at the end of the integrally machined stringers, which led to a determination that new or more restrictive airworthiness limitation…