As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SYD - DURING CLIMBOUT, SHUT NR 4 ENG DOWN DUE TO LOSS OF OIL QTY LOW PRESS AND ILLUM OF OIL PRESS LIGHT. FLIGHT RETURNED TO SYDNEY. WINDMILL TIME PER CREW SAFETY REPORT 24 MIN. FOUND DE-AERATOR BROKEN. REPLACED MAIN GEARBOX ASSY AS PER PRATT AND WHITNEY JT9D ENG MANUAL 72-00-00, GEARBOX INSTALLATION ENG RII C/W.