As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOCAL TEST FLIGHT. ENGINE SHUTDOWNS AND RESTARTS PERFORMED. NR 1 ENG DEVELOPED A RPM FLUCTUATION. WANDERING 4-500 RPM. ENGINE MONITORED. SEVERAL CHECKS PERFORMED. ENGINE SHUTDOWN AND SECURED IAW COMPANY SOP. ENGINE INOP PROCEDURES FOLLOWED. UNEVENTFUL LANDING. MX FOUND NR 1 NTS LINKAGE SLIGHTLY OUT OF RIG, NTS RERIGGED AND TESTED SERVICABLE.