What was found
RETURN TO BLOCK. PILOT EADI SHOWED EXTREME PITCH VARIATIONS. REMOVED AND REPLACED NR 1 VERTICAL GYRO, OPS CHECKED SYSTEM GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RETURN TO BLOCK. PILOT EADI SHOWED EXTREME PITCH VARIATIONS. REMOVED AND REPLACED NR 1 VERTICAL GYRO, OPS CHECKED SYSTEM GOOD.