As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HKG/BEL - AFTER DEPARTURE NR 2 ALTIMETER BECAME ERRATIC WITH ALT ALERT SOUNDING ENTER FOLLOWED BY AIRSPEED MACH INDICATOR FLAG AND SAT IND OF .05, SUSPECT RN 2 CADC FAILED. CHANGED NR 2 CADC IAW MM 34-12-01/401. CADC NR 2 OPERATIONAL TEST IAW MM 34-12-00 SATISFACTORY. PITO/STATIC SYSTEM CHECK CARRIED OUT SATISFACTORY. NO LEAKAGE, AIRSPEED AND ALTIMETER READING AGREE WITH TESTER. (M)