As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EVENT 1 AND 2 INSPECTION OF ACFT, FOUND MULTIPLE CRACKS IN DOUBLER BEHIND END FRAME OF CABIN DOOR. (HINGE END OF DOOR). SUSPECT STRESS FATIGUE DUE TO HINGE AND HINGE PIN WEAR, ALLOWING DOOR TO FLEX DURING BOARDING OPERATIONS, ETC. DISASSEMBLED HINGE END OF CABIN DOOR; INSTALLED NEW DOUBLER AND HINGE ASSY IAW PIPER MAINTENANCE INSTRUCTIONS.