As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 OIL FILTER BYPASS ON TAXI IN. ACFT GROUNDED. NR 1 ENGINE R & R SCAVENGE OIL FILTER CLOGGING TRANSMITTER IAW AMM 79-21-07-400-801. PERFORMED ELECTRICAL ENGINE CONTROL TEST, TASK 73-21-00-700-804, TEST PASSED. R & R NR 1 ENG OIL FILTER IAW AMM 79-21-06-400-801, LEAK TEST AND SUCCESSFUL GROUND VERIFICATION GOOD.