It seems time for a review of the history of F3 A-B-A sets #62 and #64 before and after the disastrous collision of these two sets at Ash Grove, June 1947. All six units had been delivered new early that same year with high fans, dual headlights, and three portholes. A-units #62B and #64A were totaled in that wreck, along with one of the B's. In the following months there were several unit renumberings while the MONON was scrambling to deal with its sudden power shortage, but in the end, the two A-units were replaced with 2 brand new F3A's in March 1948, carrying the same road numbers. These new units had the newer low fans, single headlights, and only two portholes on each side. These were the only F3 units the MONON ever had with the two portholes, and along with two A's from an EMD demo set also acquired during that time (becoming dual-service units #85), among the only units with single headlights. The two new units were also the only ones delivered with the low fans, but later photos show that these were freely mixed during shopping with the higher fan housings.