As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT DURING CRUISE FLIGHT THE STANDBY ATTITUDE INDICATOR DISPLAY SCREEN WENT BLANK. THE DEFECTIVE SECONDARY FLIGHT DISPLAY (STANDBY) WAS REMOVED SN M001386. AN O/H UNIT WAS INSTALLED. FUNCTIONAL CHECKS WERE SATISFACTORY. SN M001386 WAS O/H IN OCT 10, 2011 AND FAILED AFTER 8.6 HRS INSERVICE.