As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NOT GROUNDED: CREW REPORTED THAT AFTER TAKEOFF THEY RECEIVED A RH ATTITUDE REFERENCE FAULT AND A RH IRU FAULT. THE CREW ELECTED TO RETURN TO CUN. MAINTENANCE ACCOMPLISHED RESET OF BOTH RH ARU FAULT IAW 34-20-F1-26A-42A-A AND RH ATTITUDE REFERENCE PER 34-20-F1-98A-421A-A. PERFORMED FIM PMC -B787-81-205-A-8106-00. NO FAULT NOTED, NOT ACTIVE.