B737 Undifferentiated or Other Model
Flight Crew Instrument; Flight Crew Multiengine; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 160.38; Flight Crew Total 1716.57; Flight Crew Type 1716.57
Situational Awareness
ATC Issue All Types; Conflict Ground Conflict; Critical; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR; Ground Event / Encounter Aircraft
Flight Crew Took Evasive Action
Human Factors; Procedure; Aircraft; Airport
We landed [Runway] 26R; and taxied FD NE to hold short [Runway] 26L. A small airplane; a single-engine Piper; was also holding short of [Runway]  26L at NE. As we approached the hold short line at a taxi speed of 2-3 kt; the First Officer asked me if I could see the small airplane ahead of us. We were less than 50 feet away; and I was just starting to see it; but it almost completely blended into the taxiway and surrounding lights. We were configured per Company SOP regarding ground movement; including taxi light on. We were not advised by the Tower Controller of any ground traffic ahead of us. I attached some images that were taken when we were stopped approximately 50 feet away from the small airplane ahead of us.
B737 Captain reported taxiing to within 50 feet of a small aircraft while approaching a runway hold line during taxi to parking.