Steve — Once again. It is NOT necessary for elders to get anything in writing before they announce somebody is no longer a JW. To verbally fail the 'loyalty question' is sufficient.
This challenge will almost certainly not happen to a JW who has simply become inactive. However, as many posters have testified above, it does regularly happen if a JW is suspected of apostasy and still has social contact with other JWs
MrExJW — What you have or haven't heard hardly counts as data.