As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAIN'S ATTITUDE INDICATOR GYRO FLAG APPEARED DURING CLIMB-OUT. PITCH WENT TO 15 DEGREES AND LOCKED. FLIGHT RETURNED TO GTF AND LANDED WITHOUT INCIDENT. REPLACED CAPTAIN'S VERTICAL GYRO AND ADI. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.