I have been told two different versions of the cars demise. One is that it was wrecked while en-route from Bombardier to the T and never used in service. The other it was involved in a collision with a tractor trailer at Tower Rd in Lincoln. But the Lincoln wreck could have #1301. I want to believe it never saw service, because the interior was in almost perfect condition.
IIRC from what my friend at MBCR told me a few years ago, 1648 was sitting in the yard at Southampton St when the accident occurred early in its career. It was not in the clear, and one corner was crushed when another train attempted to enter the next track over.
"The destination of this train is [BEEP BEEP]" -announcement on an Ashmont train.
I believe the 1403 was wrecked at Southampton St Yard in 1987, there are pictures of it wrecked somewhere on the NERail photo archive.
That leaves to 1301 and 1648 to be explained if 1401 was the South Side incident. I believe 1301 was wrecked at Tower or Great Rd in Lincoln and that control car 1651 was ordered to replace that car. If the story is correct that the 1648 was wrecked on it's what to the MBTA, then the 1652 would be it's replacement.
The 1710 hit a low boy trailer hung up on a crossing in Franklin it did not belong on. An excavator was on the trailer and swung off the trailer and hit the side of the car. There is a thread somewhere devoted to that incident on here.