As confirmed by email from David Benavente (Coastal Resources Management, Saipan), dated Thursday, September 15th, 2011 (4:16pm Saipan time):
Today they went out to the CREWS station and retrieved the "groundtruth" CT sensor. This is the instrument that normally is only attached for 3 hours at a time during station cleanings. It was connected during station installation (August 23rd) and left installed after the final visit by the installation team (August 27th) so that we could confirm that its wiring and programming were working properly in the field.
As confirmed by a later email message (received October 31st), they also inspected the "deep" CTD during this September 15th visit. They confirmed that it had been installed backwards (with its pressure sensor pointing inwards towards the pylon) and they were able to reinstall it correctly.
Mike J+