As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE FLYING IN CRUISE, THE PILOT'S AIRSPEED INDICATION DROPPED TO ZERO. NR 1 ALTIMETER AND STANDBY ALTIMETER BOTH SHOWED A DESCENT, ERRONEOUS INDICATIONS. FAULT WAS TRACED TO AN INTERNAL (CAPSULE) LEAK INSIDE THE AIRSPEED INDICATOR, WHICH EFFECTED THE OTHER INSTRUMENTS. NR 1 AIRSPEED INDICATOR REPLACED AND SYSTEM TESTED SERVICEABLE.