As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DESCENDING THROUGH AROUND FL19I0 RED X OVER CAPTAIN`S ALTIMETER & VSI. AIRPLANE WAS NOT DETECTING ICE AT THE TIME. SPEED WAS APPROX 270 KNOTS. DRAINED BOTH PITOT STATIC SYS IAW AMM 34-13-00. PERFORMED OPERATIONS CHECKED OF ADC IAW AMM 34-15-00. OPERATIONS CHECKED GOOD.