As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING T/O ROLL AFTER 80 KTS NR 2 OIL PRESS ROLLED BACK TO BELOW THE RED DIAL. ALL OTHER IND NORMAL. CONTINUED T/O AND PERFORMED LOP CK LIST PROCEDURE PER QRH. ENG SHUTDOWN AND RETURNED TO DTW. SWAP INDICATORS. PROBLEM FOLLOWED. REPLACED NR 2 OIL PRESS IND, OPS CHECK NORMAL. PERFORM WINDMILL INSP, SUPPLY AND SCAVENGE FILTER CLEAN. CHIP DETECTORS CLEAN. PERFORMED POWER ASSURANCE RUN, ENG CHECKS NORMAL. OK FOR SERVICE.