What was found
THE CREW REPORTED THAT DURING ACFT POWER UP THE STANDBY ATTITUDE INDICATOR DISPLAY WOULD INTERMITTENTLY LOCK UP. THE DEFECTIVE UNIT WAS REMOVED. AN OVERHAULED UNIT WAS INSTALLED, FUNCTIONAL CHECKS SATISFACTORY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
THE CREW REPORTED THAT DURING ACFT POWER UP THE STANDBY ATTITUDE INDICATOR DISPLAY WOULD INTERMITTENTLY LOCK UP. THE DEFECTIVE UNIT WAS REMOVED. AN OVERHAULED UNIT WAS INSTALLED, FUNCTIONAL CHECKS SATISFACTORY.