As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED TAKEOFF DUE TO NR 4 ENGINE WOULD NOT GO TO MAX POWER. FOUND COMPRESSOR BLEED ACTUATOR TO CONTROL CLOSED TUBE B-NUT LOOSE; TIGHTENED B-NUT IAW MM 75-30-2; PERFORMED FLAG CHECK ENGINE RUN UP OPS CHECKED NORMAL IAW MM 75-30-3 AND 71-00 MAX TAKEOFF POWER (187).