What was found
RETURNED TO DEPARTURE DUE TO ADRI AND IR1 FAILED IN FLIGHT. R & R ADIRU NR 1 IAW AMM 34-12-34. BITE TEST OK, NO FAULTS NOTED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RETURNED TO DEPARTURE DUE TO ADRI AND IR1 FAILED IN FLIGHT. R & R ADIRU NR 1 IAW AMM 34-12-34. BITE TEST OK, NO FAULTS NOTED.