As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 ENGINE OIL FILTER POP OUT INDICATOR IS EXTENDED REF T/C N2479001. GROUNDED - YES. OIL FILTER BYPASS WARNING LIGHT WAS NOT ILLUMINATED. RESET AND REPLACED OIL SUPPLY FILTER PER B737-800 AMM 79-21-03. RESET POP OUT INDICATOR PERFORMED IDLE LEAK CHECK. NO LEAKS NOTED. POP OUT INDICATOR REMAINED IN THE RESET POSITION. NO CONTAMINATION FOUND ON OIL SUPPLY FILTER.