As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT THRUST REVERSER DEPLOY IN FLIGHT. FOUND THRUST REVERSER LH DEACTIVATION PROCEDURE PERFORMED ON 9/13/2023 WAS INCOMPLETE. CONNECTORS P427 AND P429 WERE STILL CONNECTED. DISCONNECTED P427 AND P429 REMOVING POWER FROM THE ISOLATION AND CONTROL VALVES. WORK PERFORMED IAW BE400 AMM 78-30-00.