Dash 8 Series Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; General Maintenance Action
Aircraft
Getting vectored with Approach Control for ILS in IMC; level at 3;000; we got an abrupt GPWS caution terrain and PULL UP warning; which stopped after a few seconds. The warning continuously reoccurred throughout the approach until I selected terrain inhibit since it was extremely distracting. Before doing so; we verified our position; asked ATC if they had any low altitude alerts; and selected the terrain display which did not show any terrain. We were level throughout the alerts. On the initial alert I disconnected the autopilot and was ready to begin the escape maneuver but the alert stopped and I remained at the assigned altitude. The FO and I determined the warnings were erroneous and I made a maintenance write up after landing.
False GPWS warning starting at 3000 feet all the way until short final. It had varying combinations of Light and Audio warnings that were determined to be false by verifying with ATC we were at a safe altitude and could see the ground.
Dash-8 flight crew reported receiving intermittent erroneous GPWS alerts while being vectored for an ILS approach.