As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTTLE WOULD NOT FIRE WHEN THE FIRING CABLE WAS PULLED, THEREFORE THE SLIDE WOULD NOT INFLATE. SUPPLEMENTAL DATA UPDATE RESERVOIR VALVE ASSEMBLY COVER PLATE WAS PUSHED IN CAUSING PULLEY TO NOT ROTATE. REPLACED COVER PLATE AND PULLEY ASSEMBLY.