As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE DOOR FRAMES PART NUMBERS SO-440014-415, SO-440020-103, AND SO-440025-173 WERE REPLACED DUE TO EXCESSIVE WEAR. THE WEAR IS CAUSED BY THE DOOR SKIN AS IT MEETS THE FUSELAGE FRAME. A THIN LAYER OF PRC IS USED TO CUSHION THE DOOR SKIN TO FRAME CONTACT AREA. SUBMITTER STATED THIS CONDITION OCCURRED ON ALL EIGHT KING AIR 100/A100 AIRCRAFT IN THE FLEET.