As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT REPORTED ON TAKE OFF ROLL L3 SLIDE PRESSURE CHECK LIGHT ILLUMINATED. MAINTENANCE REPLACED L3 DOOR INFLATION RESERVOIR ASSEMBLY PER AMM 25-62-49 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK.