As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 7315 - BOS-JFK - ABORTED TAKEOFF DUE TO RIGHT ENGINE ONLY MAKING 90 PERCENT TQ. AIRCRAFT RETURNED TO GATE. MAINTENANCE OPENED DMI NR 44978, MEL 76-2. TQ WAS VERIFIED WITH TTL OFF. MAINTENANCE CLOSED DMI 44978 ON 6/6/99 BY GROUND RUNS AND COULD NOT DUPLICATE PROBLEM, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)