What was found
DURING TAKEOFF, RECEIVED AN UNRELIABLE AIRSPEED ON FIRST OFFICER'S SIDE. FOLLOWED QRH PROCEDURES AND LANDED. MX FOUND THE BAYONET FOR AIR SYSTEM OF THE NR 2 CADC NOT SECURE. SECURED IAW SMP, TESTED SYSTEM IAW MM 34-16-01-700-802, THE SYSTEM PRESSURE HOLDS TIGHT. ACFT OK FOR RETURN TO SERVICE.