[Elecraft] kpa 500.... to disassemble or not ?

[bill steffey NY9H]

it is working fine.....

just spent the weekend at a shopping mall ham radio demonstration ... w3c....

I get the amp home and i head a bit of a rattle...
open the lid and a zinc screw drops out .... no washer yet ....

To disassemble or not ,....
  that is the question....

if the screw is part of a heatsink.... i better open it up ////
if it's part of a mechanical fixture maybe ....

what would you do ,.,,

i'm pretty certain what I'm going to do .

bill/3