As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRCRAFT ARRIVED AT THE STATION WITH THE RT ENGINE OIL TANK ACCESS DOOR HALF PORTION BROKEN OFF ANDMISSING. NEW DOOR WAS INSTALLED. FAN COWL WAS SLIGHTLY DAMAGED BY THE DOOR STRIKING. DAMAGE WAS CONSIDERED ACCEPTABLE AS PER AMM. SUSPECT THAT OIL TANK ACCESS DOOR WAS NOT PROPERLY CLOSED AT PREVIOUS STATION.