As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW CARRIED OUT AN RTO AT 90 KNOTS DUE TO A MOMENTARY FLIGHT CONTROL MASTER CAUTION LIGHT ILLUMINATED. ACFT RETURNED TO GATE. MX RAN THROUGH ALL FLIGHT CONTROL CAUSES AND NO FAULTS FOUND. REF MM 05-51-0- 23 ALL WORK IAW CARS 571.11 ATA 27, 29, 05.