What was found
PVD - FL 155, FIRST OFFICERS ADI FAILED. FLIGHT RETURNED TO PVD AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE ADI. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
PVD - FL 155, FIRST OFFICERS ADI FAILED. FLIGHT RETURNED TO PVD AND LANDED WITH NO FURTHER INCIDENT. MAINTENANCE REPLACED THE ADI. (M)