As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: DURING DESCENT INTO KPHL THE SLIDE ARMED INDICATION ON LOWER ECAM MAIN CABIN DOOR DISAPPEARED. DOOR SLIDE VISUALLY CONFIRMED ARMED AND DOOR WAS NEVER TOUCHED. MAINTENANCE FOUND ARMING HANDLE WITH A LITTLE DEBRIS UNDER IT, REMOVED UPPER PANEL AND LUBRICATED ARMING HANDLE IAW AMM 52-11-21. LUBRICATED FLOOR PRONGS IAW AMM 52-11-11.