Regional Jet 700 ER/LR (CRJ700)
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Situational Awareness
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance; Flight Crew FLC complied w / Automation / Advisory; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Returned To Clearance
Aircraft; Airspace Structure; Company Policy; Procedure
Unsure of what the cause was. The Controller said that 3;000 ft. was the minimum vectoring altitude at that point. After being told to proceed direct to HAR VOR from Center; unsure of which Center; was then handed off to Harrisburg Approach. We were told to descend to 3;000 ft.; and then handed off to Harrisburg Tower controllers. Passing over the HAR VOR at 3;000 ft. per ATC instructions we were cleared for the straight in ILS 13 approach from Tower. That is when we received an EGPWS terrain warning alarm. I was the Pilot Flying at the time and executed the terrain avoidance procedure. Reaching 3;600 ft. the warning stopped and the Tower controller asked about the sudden change in altitude. We leveled off picked up on the glideslope and continued to land without incident. The Captain asked for the number to the Tower and called when we landed to see why it occurred. The Tower controller had apparently had already been relieved from her shift at that point. This approach should be reviewed by the FAA to ensure that the TERPS minima is still active near the HAR VOR. The Minimum Safe Altitude is 3;400 ft. and aircraft are being sent below the MSA by the controllers.
CRJ First Officer reported receiving an unexplained EGPWS warning on an instrument approach that resulted in an evasive maneuver.