As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PSEU LIGHT ILLUMINATED AFTER BOTH ENGINES WERE STARTED AND RECALL WAS CHECKED. ACFT GROUNDED. PSEU LOGGED TRA L LT 53 FAULT 31-52002 . LT THROTTLE TAKEOFF WARNING WAS INTERMITTENT WHEN TESTED. REMOVED AND REPLACED LEFT AUTOTHROTTLE SWITCHPACK ASSEMBLY M1766 IAW AMM 76-11-07. OPS TESTED NORMAL.