As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 029 - ABORTED TAKEOFF AT 80 KNOTS DUE TO IR NR 1 FAULT. RETURNED TO THE GATE WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED THE NR 1 ADIRU IAW AMERICA WEST AIRLINES TASK CARD R2A34304. OPERATIONAL CHECKS WERE GOOD. VENDOR TEAR DOWN REPORT SHOWS THAT THE "Y" GYRO TO BE A SLOW STARTER. GYRO WAS REPLACED AND UNIT CALIBRATED. REPAIR AND FUNCTIONAL TESTS WERE PREFORMED IAW AT261847-01, CMM TP1011 REV 24.