Commercial Fixed Wing
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Confusion; Distraction; Human-Machine Interface
Aircraft Equipment Problem Less Severe; Inflight Event / Encounter CFTT / CFIT
Flight Crew Became Reoriented; Flight Crew FLC Overrode Automation
ATC Equipment / Nav Facility / Buildings
Visual to 22. Backed up by ILS. On the final vector to join the autopilot intercepted a false localizer and glideslope and started following it down. ATC issued low altitude alert and I (PM; Pilot Monitoring) kicked off the autopilot and told the FO (First Officer) to stop the descent. Continued the approach visually to a normal landing.
Air Carrier Captain reported false reading from the ILS on final approach to LGA airport.