As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THRUST REVERSER WOULD NOT INDICATE EXTENDED. FOUND BRACKET THAT HOLDS THE RETRACT AND EXTEND SWITCHES TO BE CRACKED AROUND THE EXTEND SWITCH WHICH ALLOWED THE SWITCH TO MOVE WHEN THE THRUST REVERSER CONTACTED IT DURING EXTENSION. CAUSE APPEARS TO BE CRACKING DUE TO REPEATED CONTACT BETWEEN THRUST REVERSER AND SWITCH ON AN ALUMINUM BRACKET. REPLACED BRACKET.