Unfortunately, most of the three letter numbers don't equate to anything near the Lat/Longs that the "Bear" flights would be at
I've found only a couple that could be Lat/Longs in the hundreds of messages that I've monitored, let alone the thousands I've gone through from previous years - and they were as noted in the link you gave to my blog
I may put up stuff from this on my blog next week. I haven't decided yet