As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
N55LC REJECTED TAKEOFF ON 16 NOV 2020 DUE TO THRUST REVERSER CAS MESSAGE WITH TO POWER APPLIED (THRUST REVERSER NOT STOWED). REMOVED LOWER T/R ACTUATOR ACCESS PANEL AND NOTED LOWER "S HOOK" BOLT HAD FALLEN OUT, NOT ALLOWING S HOOK TO OPEN AND T/R TO FULLY STOW. CHECKED RUNNING TORQUE OF NUT PLATE AND INSTALLED A SERVICEABLE LOWER T/R S HOOK BOLT P/N NAS6303U7. OPERATED T/R AND FOUND OPERATIONAL AND NO DEFECTS NOTED.