What was found
SIGNAL GENERATOR, INTERMITTENTLY CAUSES EFIS TO GO TO (TEST IN PROGRESS)-THEN ERROR OF SIGNAL ON EFIS T, REMOVED AND REPLACED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
SIGNAL GENERATOR, INTERMITTENTLY CAUSES EFIS TO GO TO (TEST IN PROGRESS)-THEN ERROR OF SIGNAL ON EFIS T, REMOVED AND REPLACED.