As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURN BACK, FLT 8788 - ON CLIMB-OUT AT CPR, THE CREW RECEIVED MULTIPLE RADAR ALTIMETER WARNINGS AS WELL AS GROUND PROXIMITY WARNING SYSTEM AND TERRAIN AHEAD WARNING SYSTEM ERRORS. PILOT ELECTED TO RETURN TO CPR. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE COAX CABLE CONNECTOR TO THE TRANSMISSION ANTENNA. (M)