As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE WOULD NOT SHUTDOWN WITH FUEL CUTOFF SWITCH, PULLED THE FIRE HANDLE TO SHUT DOWN THE ENGINE. THE AIRCRAFT WAS GROUNDED. MAINTENANCE CHECKED THE POWER AT CONNECTOR D1398P PIN 7 IAW WDM 71-51-22 28 AND CHECKED CONTINUITY FOR S10138 PIN 5 AND 6, BOTH CHECKED GOOD. ACCOMPLISHED A RIGHT ENGINE OPS RUN IAW AMM 71-00-00, AND PERFORMED SATISFACTORY OPERATIONAL CHECK.