As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN DOOR WILL CLOSE BUT DOOR HANDLE WILL NOT MOVE. CHECKED BOTH FROM INSIDE AND OUTSIDE WITH NO LUCK. REMOVED AND INSTALLED CABIN DOOR STEP TO GAIN ACCESS ON CABIN DOOR LINKAGE IAW AMM 52-10-05. PERFORMED VISUAL INSPECTION AND FOUND FWD LOWER LATCH PIN HAS EXCESSIVE BUILD UP. CLEANED AND LUBED LATCH PIN IN REF WITH AMM 12-20-15 AND PERFORMED MULTIPLE OPS CK IAW AMM 52-10-00, OPS CK GOOD.