As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R1 DOOR WILL NOT ARM. ARM/DISARM LEVER BINDS IN ARM POSITION, WILL NOT STAY ARMED. OPS CHECKED THE DOOR ARM LEVER, DETERMINED THAT SLIDE PACK IS RESTING ON THE GIRT BAR CAUSING ARMING LEVER TO MOVE UP. REPLACED THE SLIDE IAW AMM 25-62-44, OPS CHECKED GOOD. SLIDE ARMS AND DISARMS OK.