As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAD-BUF - FLT 6260 - DURING TAXI, RETURNED TO GATE DUE TO LEFT BOOST PUMP FAILED. MAINTENANCE INSPECTED AND OPENED DMI 55862, MEL 28-6. MAINTENANCE CLOSED DMI 55862 ON 10-09-97 BY GROUND RUNNING AIRCRAFT AND COULD NOT DUPLICATE, OPS CHECK GOOD. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)