As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE SETTING MAX POWER TAKEOFF, NR 4 ENGINE OIL PRESSURE MAXED OUT. PERFORMED ENGINE RUN IAW MM 71-00; FOUND OIL PRESSURE AT TAKEOFF 58 PSI WITHIN LIMITS IAW AA DC8 MM PAGES 5-35-90. ADJUSTED UPPER LIMIT TO 54 PSI IAW MM 79-20-5. OPS NORMAL, 41 PSI AT IDLE 54 PSI AT TAKEOFF. OPS NORMAL.