As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT RETURNED TO PLATFORM DUE TO DURING LEFT ENGINE START, A FUEL LEAK WAS DETECTED. DETECTED FUEL LEAK IN THE TBV DRAIN. THE LEFT ENGINE WAS MOTORING, AFTER IT WAS STARTED AND ENGINE OPERATIONAL TEST WAS PERFORMED IAW AMM 71-71-00, NO CONFIRMING FUEL LEAK, ALL CORRECT.