As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENGINE OIL QUANITTY BEGAN DROPPING SHORTLY AFTER CRUISE. LOSS INCREASED IN RATE TO APPROXIMATELY 1 QUART PER 30 MINUTES. AT 4 QUARTS DIVERTED. ALL OTHER PARAMETERS WITHIN LIMITS. ARF REPORTED SOMETHING LEAKING AFTER LANDING. SHUT DOWN ENGINE. ENGINE HAS BEEN CHANGED IAW CARD 71-94-01. AIRCRAFT WAS GROUNDED.