What was found
AFTER TAKEOFF PASSING THRU 3000 FEET GOT ALT MISCOMPARE ON CAPT PFD. ABOUT 10,000 F/O GOT SAME. WE WERE VMC ABOVE CLOUD LAYER AT THAT TIME. RAN AIRSPEED UNRELIABLE CHECKLIST. ALSO GOT IAS MISCOMPARE. CAPT ALT INDICATED FL330 AND F/O IND 32850. FGP ALTITUDE IND ALL BLANKS. WE HAD TO LEVEL OFF USING VERT SPEED 0. SEL NR 1 CADC PER PREVIOUS WRITE UP AND REST OF FLIGHT NORMAL PER THE CHECKLIST. REMOVED AND REPLACED NR 2 CADC REF MM 34-16-01-4. PERFORMED ALTIMETER ADJ/TEST REF MM 34-16-10-5, OPS CHECK NORMAL. PERFORMED MACH/AIRSPEED ADJ/TEST REF MM 34-16-11-5, OPS CHECK NORMAL. INSPECTED AND CLEANED PITOT TUBES, NO DEBRIS NOTED. VISUAL CHECK OF CAPT AND F/O'S STATIC PORT NORMAL, NO DEFECTS OR BLOCKAGE NOTED. ALL CHECKS NORMAL, A/C OK FOR SERVICE.