What was found
STL - FLT 7138 - ATC REPORTED BOTH TRANSPONDERS INOPERATIVE. NR 1 SYSTEM TESTED NORMAL. REMOVED AND REPLACED NR 2 TRANSPONDER. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
STL - FLT 7138 - ATC REPORTED BOTH TRANSPONDERS INOPERATIVE. NR 1 SYSTEM TESTED NORMAL. REMOVED AND REPLACED NR 2 TRANSPONDER. (X)