Confusion; Troubleshooting
Inflight Event / Encounter Other / Unknown
General None Reported / Taken
ATC Equipment / Nav Facility / Buildings; Airport
On approach to land on Runway 8L into PUB; I noticed that the PAPI read high and then transitioned directly to both lights on the right and the one on the far left changed to red while the second from the left stayed white. I made multiple approaches to the runway and the results were the same on every approach.
GA pilot reported the PAPI was not working properly at PUB airport.