What was found
(CAN) L ENG FAILED TO START ON TAXI OUT. RETURN TO GATE, RE-ATTEMPTED START, NO GO SUGGESTED REPLACING START VALVE AFTER TALKING TO MANUFACTURER STARTER VALVE REPLACED AND TESTED (TC# 20190619003)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) L ENG FAILED TO START ON TAXI OUT. RETURN TO GATE, RE-ATTEMPTED START, NO GO SUGGESTED REPLACING START VALVE AFTER TALKING TO MANUFACTURER STARTER VALVE REPLACED AND TESTED (TC# 20190619003)