As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PRIOR TO DEPARTURE, THE CREW NOTIFIED MX CONTROL THAT L2 DOOR WOULD NOT ARM. THE ACFT WAS TAKEN OUT OF SERVICE AND WAS SWAPPED. MX FOUND THE SLIDE EXTENSION CONTROL MECHANISM WAS STIFF AND NOT ALLOWING FULL MOVEMENT. COMPLIED WITH LUBE OF SLIDE EMERGENCY CONTROL HANDLE MECHANISM, IAW AMM 52-13-22-05. SYS OPS CHECKED GOOD IAW AMM 52-13-22-05. ACFT RETURNED TO SERVICE.