EMB ERJ 145 ER/LR
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Situational Awareness
Conflict Airborne Conflict
Flight Crew Took Evasive Action
Human Factors
Traffic resolution advisory warning system alert (TA/RA) at 3;500 ft. about 5 miles from COWAD intersection on ILS localizer Runway 17. [Cause was] VFR traffic at 3;000 ft. in Runway 17 approach corridor to PHL. [We] complied with RA to climb from 3;500 ft. [Recommend] ATC [provide] communication advisory away from traffic.
EMB-145 First Officer reported responding to a TCAS RA on approach to PHL to avoid VFR traffic in the approach corridor.