As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE-OFF WITH TRIM INDICATOR IN T.O. POSITION, THE "NO TAKEOFF" WARNING HORN SOUNDED. NOSE DOWN TRIM REQUIRED TO KEEP AIRCRAFT BALANCED. TRIM INDICATOR DID NOT AGREE WITH TRIM POSITION. MAINTENANCE ADJUSTED THE ELEVATOR TRIM INDICATOR. TRAVEL, RIGGING AND OPERATIONAL CHECKS PERFORMED. NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.