As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, NR 4 ENGINE EPR DROPPED FROM 1.44 TO 1.26, FUEL FLOW LOW, NR 4 GENERATOR BREAKER TRIPPED, BOTH NR 4 FIRE INDICATIONS APPROACHED FIRE RANGE. SHUT DOWN ENGINE. *S/D* ENGINE WAS REMOVED AND TESTED. TEST CELL PERSONNEL WERE UNABLE TO DUPLICATE THE CONDITION. THE AIRCRAFT HAS NOT EXPERIENCED ANY RECURRING PROBLEMS WITH A DIFFERENT ENGINE INSTALLED.