As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFTENGINE OIL LEAK, CREW NOTICED OIL QUANTITY DECREASE BACK TO BLOCK, AIRCRAFT GROUNDED BY MAINTENANCE. OIL LEAK WAS FOUND TO BE RESULT OF OIL CAP NOT BEING INSTALLED CORRECTLY. OIL CAP SECURED AND ENGINE RAN TO VERIFY NO LEAKAGE. NO LEAKAGE, AIRCRAFT RELEASED.