As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB, CREW WAS BEGINNING LEVEL OFF AT 3000 FT. ATC REQUESTED CLIMB TO 4000 FT. CREW ADVANCED POWER TO APPROX 600HP. EXPERIENCED A COMPLETE POWER LOSS FROM LT ENGINE JUST AFTER BEGINNING OF CLIMB. NO INDICATIONS FROM INSTRUMENTS PRIOR. CREW MAINTAINED CONTROL, AIRSPEED, AND LEVELED OFF. CREW SECURED LT ENGINE AND RETURNED TO AIRFIELD ON SINGLE ENGINE. TROUBLESHOOTING, ALL INDICATIONS ARE LEADING TO FUEL CONTROL.