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 AFTER LT ENG START, THE LT ALTER ENG & ENG CONTROL LIGHTS TURNED ON. PERFORMED BITE TO LT EEC IAW FIM 73-21 TASK 804 & 73-27 TASK 805 PROCEDURES, SHOWING FAILURE CODES 73-21-271, 73-11281 & 73-20211. THE GEN & EEC WERE REPLACED IAW AMM 73-21-08 & AMM 73-21-60, TESTED CORRECT.