As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, AT APPROXIMATELY FL210, NR 1 ENGINE OIL QUANTITY BEGAN DROPPING RAPIDLY FOLLOWED BY OIL PRESSURE DROP AND WARNING LIGHT. PERFORM ENGINE INFLIGHT SHUT DOWN PROCEDURE. AIRCRAFT RETURNED TO TOL AND LANDED WITHOUT INCIDENT. FOUND GARLOCK SEAL LEAKING AT THE ENGINE DRIVEN HYDRAULIC PUMP. REPLACED SEAL. ENGINE RUN AND LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.