As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT RETURNED TO PLATFORM, DURING TAXI THE LT ENGINE HAD AN UNCOMMANDED SHUTDOWN. MX PERFORMED BITE TO LT ENGINE EEC IAW MM 73-21-00, NO SHOWING MESSAGES. CHECK VALVE ON 5TH STAGE LT ENGINE WAS STUCK. CHECK VALVE WAS REPLACED IAW MM 36-11-02 AND PERFORMED OPS TEST IAW MM 71-00-00, ALL CORRECT.