Commercial Fixed Wing
Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument
Flight Crew Last 90 Days 137
Time Pressure; Distraction; Confusion; Human-Machine Interface
Deviation / Discrepancy - Procedural Other / Unknown; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued New Clearance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Executed Go Around / Missed Approach; General Flight Cancelled / Delayed
ATC Equipment / Nav Facility / Buildings
The Captain and I made a go around on our second attempt to landing. The first approach was discontinued due to RVR being reported below the minimums for the approach outside the final approach fix. Due to a glideslope anomaly on Runway 23. The glideslope a few hundred feet from reaching minimums made a quick movement towards half scale deflection down. The aircraft was on a constant rate of descent; airspeed and proper configuration; hand flown below 1700 feet per approach plate. At the point that I called runway in sight the Captain and I noticed that the aircraft was not going to touch down in the prescribed TDZ and accomplished the go around procedure. While being vectored for a 3rd attempt at landing; the Captain and I briefed that if the anomaly happened again; we would accomplished another go around. Before the 3rd approach; another flight was able to land on their first attempt. After requesting a PIREP from the crew; they said they were able to see the runway right at minimums. We were able to obtain visual reference with the runway right at minimums and complete a successful landing. In the hotel van with the other crew we asked them if they had issues with the glideslope and mentioned they did. They said it acted very similarly to our situation. It seems that this has been a recurring theme at CRW in the past as well. The cause of the second go-around was due to an inaccurate indication of the glideslope that put the crew in a situation where a landing would have been made outside of the TDZ. I think the FAA needs to take a deeper dive in what is causing glideslope anomalies for the ILS 23 into CRW. Especially coming into the winter months in mountainous areas where weather can deteriorate rapidly.
An Air Carrier First Officer reported having to initiate a go around on their second approach attempt due to the glideslope fluctuating. The pilot reports this is a recurring issue on this approach and other crews also reported the glideslope fluctuating.