As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DTW/IAD - FLT 6497 - DURING TAXI AT 1515 HOURS ON 8-20-97, RETURNED TO GATE WITH ONE DISCREPANCY WHICH WAS LT OIL PRESSURE CAPTION ILLUMINATED. MAINTENANCE INSPECTED AND REMOVED AND REPLACED LT OIL PRESSURE SWITCH, OPS CHECK OK. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)