As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT NR1 ENGINE LOW OIL PRESSURE WARNING ILLUMINATED. CREW SHUT DOWN THE NR 1 ENGINE AND DIVERTED. ACFT LANDED SAFELY. MX FOUND THE OIL SERVICING CAP NOT INSTALLED. THE OIL RESERVOIR WAS EMPTY AND OIL WAS FOUND COVERING THE EXTERIOR OF THE ENGINE. MX SERVICED THE OIL AND IS PERFORMING AN OIL "SOAP" ANALYSIS USING RESIDUAL OIL FROM INSIDE THE ENGINE. ACFT WILL BE RELEASED PENDING THE OUTCOME OF THE "SOAP" ANALYSIS.