What was found
PIT - DURING A FUNCTIONAL CHECK, THE TAIL CONE EMERGENCY EVACUATION SLIDE FAILED TO DEPLOY AUTOMATICALLY. MAINTENANCE REPLACED THE TAIL CONE EMERGENCY EVACUATION SLIDE ASSEMBLY. INVESTIGATION IN PROGRESS TO DETERMINE REASON FOR NOT DEPLOYING AUTOMATICALLY. THE EVACUATION SLIDE RELEASE HARNESS TOGGLES WERE FOUND TO BE TOO STIFF TO OPERATE. THE HARNESS ASSEMBLY WAS REPLACED. ENGINEERING RELEASED A CAMPAIGN DIRECTIVE TO REPLACE THE SLIDE RELEASE HARNESSES ON THE ENTIRE FLEET. (M)