As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE DEPARTING RUNWAY 05 FROM MKK EXPERIENCED OVERSPEED ON NR 2 PROPELLER ON CLIMBOUT. COMPLETED APPLICABLE CHECK LISTS, DECLARED AN EMERGENCY WITH MKK TOWER AND RETURNED TO RUNWAY 05 FOR LANDING AND CANCELLED THE EMERGENCY THEN CONTACTED DISPATCH.