What was found
LEFT ENGINE STARTER BURNED UP DUE TO RUNNING CONTINUOUSLY DUE TO RELAY STICKING. POOR DIAGNOSIS CAUSED STARTER TO BE REPLACED WITHOUT REPLACING SOLENOID. SECOND STARTER FAILED ALSO. SAME CONDITION. RELAY REPLACED WITH SECOND NEW STARTER. SUBMITTER SUGGESTS MANUFACTURERS INSTALL WARNING LIGHT IN STARTER POWER CIRCUIT TO ALERT PILOT WHEN UNIT IS ENERGIZED. PILOT CANNOT TELL IF POWER IS REACHING STARTER MOTOR, OTHERWISE.