As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING OPS CHECK OF ESCAPE SLIDE SYSTEM, ESCAPE SLIDE OPERATED AS REQUIRED, BUT THE SLIDE LIGHTS DID NOT ACTIVATE DURING REVIEW. IT WAS FOUND THAT THE ACTIVATION LANYARD APPEARED TO BE TOO LONG WHEN THE SLIDE WAS FULLY DEPLOYED TO ACTIVATE THE LIGHTS. REPLACED SLIDE/RAFT ASSY IAW AMM 25-66-00/201.