As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO TAKEOFF CONFIG WARNING ON THRUST SET WITH PERIMETER APPEARING OK. IN PARALLEL "TAKE OFF OK" IS GIVEN WITH P. BRAKE SET. FOUND PARKING BRAKE PRESSURE SWITCH AND PARKING BRAKE PRESSURE SWITCH CONNECTOR SEVERELY CORRODED. REPLACED BOTH. OPS/CK LK/CK GOOD. TAKE OFF CONFIG CHECKS GOOD. REMOVED AND REPLACED ELECTRICAL CONNECTOR AT P0528 IAW EMB SWPM 20-51-01.