As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
27 AIRCRAFT REQUIRED FULL NOSE DOWN TRIM TO MAINTAIN CONTROL IMMEDIATELY AFTER TAKE OFF, POWER AT IDLE AND SPEED 160-170 FLAPS UP TO HAVE CONTROL. REINDEXED ELEVATOR TRIM POINTER AND VERIFIED PROPER TRIM TAB DEFECTIONS AT THE SPECIFIC INDICATOR POSITIONS. DEFLECTIONS AND POINTER OPS CHECK GOOD. IAW CE560XL M/M CH. 27-32-01 AND CE560XL M/M 27-31-00.