I only know of it happening one time.
Local elders DF the guy but he eventually appealed to the Service Dept (Brooklyn then) and they determined the local elders had erred. He was not "reinstated". The DFing was rescinded.
Just another example of the dumbass redneck elders not following procedure. This was probably before the Secret Elders' Book was released, so I guess we'll give 'em come slack. I'm sure the Book spells it out clearly. But then, that means at least one of the Elders on the JC has to be able to read.