The Vigilants were due an engine swap anyway so it may be that they will look to roll this into the recovery program. As this was to allow a change in OSD, the PT would have to carry out either the RA5724 or 5725 activities (depending on whether the MAA decided it was a Life Extension or OSD extension). This would require a lot of resource for even a large PT, and my guess is that the Glider desks aren't exactly over-manned!