As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: UPON ARRIVAL (CABO). SJD ON POST FLIGHT INSPECTION FOUND ENGINE #1 OIL SERVICE DOOR HAD SEPERATED FROM COWLING WITH MULTIPLE GASHES IN COWLING AFT OF SERVICE AREA. REPLACED #1 ENGINE LEFT FAN COWL PER TASK CARD 26L00071006.