As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#423, BOS-STI. (AIRCRAFT DIVERTED TO JFK) 'ON DEPARTURE CLIMBING THROUGH 1,000' AIRCRAFT PITCHED UP GENTLY UNCOMMANDED AND PITCH TRIM WAS MOVING NOSE UP W/ NO COMMANDS FROM; AS PER TSM 27-30-00 R/R ELAC 2 IAW AMM 27-93-34. OPS CHECK IS GOOD. A/C OK TO CONT SVC.'