As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R3 DOOR ARMING HANDLE HAD A SPONGY FEEL, AND INTERMITTENTLY STAYED ARMED. THE AIRCRAFT WAS GROUNDED. MAINTENANCE INSPECTED THE R3 DOOR AND FOUND DEBRIS ON THE GIRT BAR, CLEANED THE GIRT BAR. MAINTENANCE ALSO ACCOMPLISHED AN OPERATIONAL TEST IAW AMM 25-62-44.