As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE IDLE LOW 48 PERCENT N2 28.5 PERCENT N1 AFTER 12 SECONDS NR 1 ENG WAS NOT AT 1.6 EPR DID NOT MAKE T/O POWER AT 40 KTS/RTO. REPLACED NR 1 ENG FUEL CONTROL UNIT PER M/M 73-21-2. PERFORMED ENG POWER TEST PER JRH 06-04-02, ALL PARAMETERS CHK WITHIN LIMITS.