As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING TAKEOFF, THE ENGINE COULD NOT ACHIEVE THE COMPUTED N1 REQUIREMENT OF 94.1 PERCENT. THE ENGINE ONLY REACHED 90 PERCENT, WITHOUT COMPUTER LIGHT OR FAULT INDICATIONS. ALL OTHER PARAMETERS MATCHED THE N1 AT 90 PERCENT. TROUBLESHOOTING IS ON-GOING.