Regional Jet 700 ER/LR (CRJ700)
Flight Crew Air Transport Pilot (ATP)
Flight Crew Total 4700
Situational Awareness
ATC Issue All Types; Conflict NMAC
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Took Evasive Action
Human Factors
Approximately 25 miles northeast of OKC Airport; we were cleared to descend from 6;000 feet MSL to 4;000 feet MSL. At approximately 5;000 feet MSL; we received a TA alert and approximately 20 seconds later; we received an RA with a command to descend at 2;000 FPM. Upon reaching 4;000 feet MSL; a Beechcraft V35 crossed over the top of us at approximately 200 feet. I asked OKC Approach about the V35 and his reply was that the V35 was supposed to be at 5;500 feet MSL. I then inquired if the V35 was verified and OKC Approach said he was not. It appeared that the V35 was descending to a GA airport approximately 10-15 miles northeast of our position.
CRJ-700 First Officer reported an NMAC with a Bonanza during descent into OKC.