As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE OIL INDICATOR LINE WAS WORN COMPLETELY THROUGH. THE CIRCUMSTANCES UNDER WHICH IT OCCURED, WAS DURING FLIGHT. PROBABLE CAUSE: OLD AND CORRODED. RECOMMENDATION TO PREVENT RECURRENCE: CLOSER INSPECTIONS OF ENGINE, AND ENGINE PARTS/ COMPONENTS.