As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLT LEVEL 330, NR 1 ENG OIL QTY, OIL PRESS DROP TO ZERO. OIL PRESS LIGHT CAME ON. ENG WAS SHUTDOWN IAW CHECKLIST. ENGINE WITH POSITIVE OIL PRESSURE. MAINTENANCE FOUND ANGLE GEAR BOX OIL SCAVENGE LINE FITTING LOOSE ON ANGLE GEAR BOX. REMOVED AND REPLACED ANGLE GEAR BOX PER WI 72-653 AND MM 72-61-00. RAN ENGINE, OPS AND LEAK CHECKED NORMAL. AIRCRAFT RETURN TO SERVICE. (M)