As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN DOOR: MAIN CABIN DOOR EXTREMELY DIFFICULT TO OPEN. REQUIRED BOTH CREW MEMBERS PUSHING WITH THEIR FEET. IT DOES NOT APPEAR THAT EITHER SEAL WAS INFLATED. CORRECTIVE ACTION; REPLACED FITTING ASSEMBLY IN DOOR PIN BELLCRANK IAW SUPPORT BRACKET ASSY AND DETAILS DRAWING NUMBER. 6611356 SHEET 4. INSTALLED DOOR SPRING AND COUNTERWEIGHT ASSEMBLY, ADJUSTED CABLE IAW 560XL AMM 52-10-03. / INSTALLED STEPS ON MAIN CABIN DOOR IAW 560XL 52-10-02.