As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN DOOR VERY DIFFICULT TO PUSH INTO THE GUST LOCK WHEN OPENING, AND HAVE TO PUSH INTO GUST LOCK FROM OUTSIDE. FOUND LOCKING MECHANISM FOR L1 DOOR FILLED WITH GRIME AND DIRT. CLEANED AND REMOVED DEBRIS AND PERFORMED ADJUSTMENT TESTS IAW AMM 52-11-00 AND CHECKS GOOD.