About the F7's and F9's, believe it or not, at least in Canada, there are a few in revenue service, i believe RailLink has one, and the CPR has 3 units out west on the Royal Canadian Pacific FP7's. I remember in the 80's in Manitoba, they were common on CPR and CN, and VIA. Even the FPA4's were still around until 1990 and the safety changes that came with the CROR.
On the BNSF, they are starting to phase out SW1200s,SD-9s,GP-9s and a majority of the SD40-2s are being sold off, You can't hardly find a U30c let alone a C30-7 on the property except mabe in Alliance.Some Santa Fe GEs still exist and some of their SD45-2 fleet is still around. The GP30s and GP35 of the BN were modified at West Burlington Shop to GP39M classification and can be ween around often. Alot of the older locomotives are being sold and leased back under a different company, some are in storage.
BNIRRLives