As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, NUMBER 4 ENGINE INDICATED LOW THRUST AND APPEARED TO BE STALLED. RESTARTED ENGINE. ENGINE OPERATED NORMAL FOR REMAINDER OF FLIGHT. PERFORMED CHECKS PER M/M 71-00-42 AND FOUND ALL NORMAL. REPLACED MAIN ENGINE FUEL FILTER PRECAUTIONARY, LEAK CHECK OK.