As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON GROUND, WHEN FLIGHT ATTENDANTS UNDERGOING RECURRENT TRAINING ATTEMPTED TO OPEN FWD RT EMERG EXIT DOOR, WERE UNABLE TO GET DOOR OPEN. MAINTENANCE CALLED TO ASSIST AND REQUIRED TWO ENGINEERS (ONE ON INSIDE HANDLE AND ONE ON OUTSIDE HANDLE) TO GET DOOR OPEN . MAINTENANCE INSPECTED AND LUBRICATED INTERNAL DOOR MECHANISM, DOOR RE-INSTALLED AND FUNCTIONED WITH NORMAL OPENING FORCE. (TC NR 20070420003)