Date: 201708
Local time of day: 0001-0600
Location: SPS.Tower, TX
Flight conditions: VMC
Light: Daylight
Aircraft: Commercial Fixed Wing
Operator: Air Carrier
Operating under: Part 121
Flight plan: IFR
Mission: Passenger
Flight phase: Landing
Airspace: Class D SPS
ATC / advisory: Tower SPS
Reporter organization: Air Carrier
Reporter function: Captain; Pilot Flying
Reporter qualification: Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Human factors: Distraction; Training / Qualification; Situational Awareness
Anomaly: ATC Issue All Types; Conflict Airborne Conflict
Detector: Automation Aircraft RA; Automation Aircraft TA; Person Flight Crew
When detected: In-flight
Result: Air Traffic Control Issued New Clearance; Flight Crew Executed Go Around / Missed Approach; Flight Crew Took Evasive Action; General Flight Cancelled / Delayed
Contributing factors: Company Policy; Procedure; Airport; Airspace Structure
Primary problem: Procedure

Narrative: VFR weather existed at the time of the event. We had been cleared for a Visual Approach to the center runway from an approximate 10 mile extended base to final. There was active military pilot-training occurring in the traffic patterns for all the runways. While established on a final; descending below 1;500 feet; we received a TA of an aircraft on our left. I was the pilot flying and my main focus was on manually flying the airplane while my check airmen Captain visually confirmed the aircraft location; pointed it out to me and I saw it as well. Moments later we received an RA to climb. The Captain called for a go-around and I began the go-around maneuver. Within seconds we received a reversal RA to descend. Because of the low proximity to the ground and because the Captain received visual confirmation of the aircraft we elected to continue the go-around. We returned for a safe landing the second attempt.My check airman Captain mentioned afterwards that the aircraft to our left appeared to be making a sharp 90 degree base-to-final. A passenger; who was a deadheading pilot; on the left hand side of the airplane also made the same comment as he was deplaning the aircraft. This sharp maneuvering by the aircraft is most likely common for military airplanes but due to the close proximity to our flight it triggered an RA.While there was nothing we could've done differently to avoid this situation; I believe this is a fault with the airports traffic procedures for military and commercial airplanes. It does not seem safe or reasonable to have high maneuvering military fighter jets and turboprops conducting traffic patterns while an [Air Carrier] flight is landing right in between them. Given the small amount of flights into this airport it should not be too much of a problem or nuisance to allow an [Air Carrier] airplane to land on either of the non-center runways or postpone/delay military traffic pattern operations until the [Air Carrier] airplane has landed. The FAA observer and fellow pilot's friends of mine all commented that this problem is not unusual to this airport.




Synopsis: An air carrier pilot reported receiving an RA from parallel runway traffic and executed a go around.