As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3240 - GEAR - DUE TO THE LOSS OF ADIRU-1 & 3. ADIRU-3 WAS ON MEL AND ADIRU-1 FAILED EN ROUTE. ALTERNATE LANDING GEAR EXTENSION WAS CARRIED OUT AND THE SHIP WAS TOWED TO THE GATE DUE TO THE LOSS OF NOSE GEAR STEERING. CORRECTIVE ACTION - REPLACED AIR DATA MODULE ADM-4 (19FP4) - RT STATIC PRESSURE