As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN CLOSING THE MAIN CABIN DOOR FROM INSIDE THE CABIN, THE HANDLE THAT IS PULLED TO BRING IN THE EXTERIOR HANDLE AND SEAL THE PRESSURE RELIEF FLAP IS VERY DIFFICULT TO PUSH BACK IN. // SIGNOFF// ADJUSTED THE SPRINGS ON THE HINGE ASSY AND RETURNED HINGE BACK INTO ORIGINAL CONFIGURATION REF CHALLENGER 650 IPC 25-23-03. OPS CHECK GOOD NO DEFECTS NOTED AT THIS TIME.