As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS LOW SPEED ABORT 20KNT ON TAKE OFF ROLL. ENGINE 1 SLOW TO SPOOL AFTER BOTH STABILIZED AT 50% N1. MAINTENANCE REMOVED AND REPLACED ENG #1 PS3 SENSE LINE AND T12 TEMP SENSOR IAW AMM 72-00-00 AND AMM 73-21-40 OPS CHECK GOOD. ACCOMPLISHED ACCEL CHECK FOR ENG #1 ACCEL TIME WITHIN LIMITS (3 SECONDS) OK FOR SERVICE AT THIS TIME IAW AMM 71-00-00-710-025A.