Saab AB Issues Airworthiness Directive for Saab 340A and 340B Airplanes

Summary

Saab AB is superseding an existing airworthiness directive for certain Saab 340A and 340B airplanes, requiring a revision of the flight manual, repetitive inspections of de-icing boots, and replacement of single-stitched boots with improved double-stitched boots to address reports of ruptured boots.