Small Transport; Low Wing; 2 Turbojet Eng
Flight Crew Instrument; Flight Crew Multiengine
Confusion; Human-Machine Interface; Distraction
Ground Event / Encounter Ground Equipment Issue
Flight Crew Overcame Equipment Problem
ATC Equipment / Nav Facility / Buildings
The PAPI on Runway 31 shows from left to right on glideslope WHITE RED WHITE RED; slightly below glideslope from left to right shows one WHITE RED RED RED. Upon returning to glide slope it showed WHITE RED WHITE RED. Both pilots acknowledged this arrangement. Improper light assignment.
GA pilot reported the PAPI lights at ABR airport are not aligned correctly.