As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOTS REPORTED UNABLE TO START LT OR RT ENGINES AT DEPARTURE. MX INVESTIGATION REVEALED THE WIRE LEAD FROM ACFT BATTERY CONTACTOR TO THE STARTER SOLENOID WAS BROKEN AND SEPARATED AT THE BATTERY CONTACTOR END, JUST DOWN-STREAM OF THE TERMINAL CONNECTION. NEW WIRE MFG BY LOCAL AVIONICS VENDOR AND INSTALLED. ENGINE START AND OPERATION CHECKED NORMAL.