[Elecraft] D16/D17 and high swr (kpa100)

[Kirk Brown]

After six months of operating, my k2/100 shows high swr/hi curr when
connected to the dummy load. Running in battery/qrp mode, everything is
fine, so I suspected something in the PA. I checked R26/R27 and they showed
about 25k ohms each which seems a bit low (the alignment step calls for 43k
ohms). I looked at the schematic and decided to test D16 and D17. D16 shows
0.057 volts both ways and D17 shows about 0.3 volts. Is D16 shot?
Thanks,

Kirk, KA2P