As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE SETTING POWER FOR TAKEOFF, LT ENGINE OIL PRESSURE INDICATION WAS ERRATIC ON EICAS PAGE. REDUCED POWER AND RETURNED TO GATE. MAINTENANCE RERACKED THE NR 1 DATA ACQUISION UNIT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 31-42-00. OPERATIONAL CHECK GOOD AND AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.