As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 310, EMERGENCY EQUIP SLIDE AT R2 IS DISARMING WHILE IN FLIGHT. MAINTENANCE REPLACED THE R2 GIRT BAR. AFTER EXTENSIVE TROUBLESHOOTING, MAINTENANCE ADJUSTED THE VERTICAL CONTROL ROD OF ARMING LEVER, 3/4 TURN COMPLIED WITH TO TIGHTEN ARMING LEVER DOWN. OPERATIONAL CHECK WAS GOOD. NO REPEAT EVENTS.