As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED: PILOT REPORTS LEFT ENGINE SLOW TO SHUTDOWN, WHEN FUEL CONTROL SWITCH MOVED TO CUTOFF, APPROX.15 SECONDS. RECYCLED SWITCH ONCE. MAINTENANCE REMOVED AND CLEANED CONNECTOR ON MEC. REINSTALLED CONNECTOR AND OPERATED ENGINE. ENGINE SHUTSDOWN NORMALLY.