As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED: PILOT REPORTS ON TAKE OFF WITH 27K BLEED OFF, AFTER ENGINES WERE SET TO 40 PERCENT, TOGA PRESSED. THE #1 ENGINE ACCELERATED NORMALLY AND THE NO.2 ENG DID NOT ACCELERATE OR VERY SLOW. WE ABORTED AND RETURNED TO GATE FOR INSPECTION. MAINTENANCE ACCOMPLISHED EEC BITE OF #2 ENG IAW WITH FIM 73-00-810-801-F00, NO FAULTS NOTED. NO CURRENT FAULTS.