As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CLIMBING THROUGH 12000 FT AT 250 KIAS ACFT NOSED OVER AS FLAPS WENT TO AT LEAST 25 DEGREES AND AUTOPILOT KICKED OFF. ACFT SLOWED TO 200 KIAS WHILE RETURNING TO DEPARTURE AIRPORT. FLAPS CONTINUOUSLY CYCLED FROM 0 TO 12 DEGREES. CIRCUIT BREAKERS 1F4 AND 2F4 WERE PULLED. A 0 DEGREE FLAP LANDING WAS PERFORMED. MX REPLACED THE FLAP POSITION TRANSMITTER AND THE SKEW DETECTION HARNESS PN K601R50533-3. AFTT: 27877:46, CYCLES: 23108.