As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTENT ENGINE OIL LOW PRESSURE LIGHT. CREW HEARD LOUD POP OVER COCKPIT SPEAKER FOLLOWED BY AND AFT BULK CARGO SMOKE INDICATION. EMERGENCY DECLARED. REPLACED NR 1 ENGINE LOW OIL PRESS SWITCH PER MM 79-34-11-04. RAN ENG LEAK AND OPS CKD OK PER MM 71-00-00-05.