[R-390] R-392/URR MWOs

[Dave Merrill]

Yesterday a Tobyhanna depot overhauled R-392 sold on eBay (item
250214992646).  The carton was stamped 12/81, perhaps making it one of
the last ones to have such treatment.  A sticker above the nameplate
indicated that MWO-5820-335-35/1 had been applied.  Anybody know what
this MWO consists of and the details of it's implementation?

MWOs are listed in DA PAM 310-4 but I no longer have access to that
document.  As expected, an ETM search at LOGSA came up empty.

/dave
N9ZC