As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT AFT SLIDE INDICATION INOPERATIVE ON DOOR OXYGEN SYS ECAM PAGE. SLIDE INDICATION SHOWED ARM AT THE GATE. IAW CREW DOOR 2L SLIDE ARMED INDICATION OUT IN CRUISE AND REARMED ITSELF ON DESCENT THRU 15,000 MSL. CABIN PRESS DELTA 4.8 PSI CABIN ALT 3100' -ADJUSTED DOOR 2L AFT ECS SLIDE ARM HANDLE PROXIMITY SWITCH 7-WN-1 IAW AMM 52-71-00-820-002-A-01.