As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APPROXIMATELY SIX MILES FROM THE BAL VOR, THE CREW EXPERIENCED A FLASH AND LOUD BOOM. THE CREW ASSUMED THAT THE AIRCRAFT HAD BEEN STRUCK BY LIGHTNING. THE CREW DECLARED AN EMERGENCY AND LANDED WITH NO FURTHER INCIDENTS. THE AIRCRAFT WAS FERRIED TO DAY WHERE MAINTENANCE INSPECTED AND REPLACED THE LEFT HAND PROPELLER IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.