As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED RT ENGINE N1 FLUCTUATING FROM 80.8 TO 93.0 IN CLIMB AT FL190. CREW LANDED AT DESTINATION AIRPORT WITHOUT INCIDENT. MAINTENANCE INSPECTED AND DEFERRED ENGINE SPEED CONTROL SYS IAW MINIMUM EQUIPMENT LIST, MEL. ACFT RELEASED FOR SERVICE.