As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 6022 - FAT-PHX - RETURNED TO FIELD DUE TO AIRCRAFT TRIMMED NOSE DOWN THREE TIMES DURING CLIMB-OUT. MAINTENANCE DISCOVERED A CHAFFED WIRE IN THE CAPTAINS YOLK. MAINTENANCE REPLACED THE WIRE AND THE SWITCH. OPS CHECKED GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)