A Line Mechanic reports being directed by his Supervisor to load their latest EGPWS software into three of their Airbus A319 and A320 aircraft. After loading the software; he could not sign-off the work in their maintenance computer. Maintenance Control told him; that work was not scheduled for his station; and they were unable to 'unlock' their computer to allow him to sign-off his work.

Narrative

I was directed by my Lead (as I assume terminal Management directed him) to do the software load on Airbuses we had overnight at the terminal tonight (August 2009). The specific Engineering Directive; called out to load a new software version in the EGPWS computer. I loaded this software into two A319's and one A320. I followed the Maintenance Manual (MM) and all three Airbuses accepted the load as directed in the MM. However; the problem occurred when I went to sign off the loads. The items were showing 'Locked' in our Maintenance Computer and to call Maintenance Control to 'Unlock'. I proceeded to call Maintenance Control; I talked with Maintenance Planner Mr. X. I asked him to 'Unlock' or assign the Engineering Directive to our station at ZZZ; he found the request. He then proceeded to advise me that he could NOT 'unlock' the item. As he continued to try; he commented that the software loads were 'on hold'; due to issues with that version. Additionally he said the item was not assigned to ZZZ Maintenance. I told him I was directed to do so (load software); I did not do it because I wanted to do it. After some time he said to give him my name; the nose numbers; which I did and he would try to 'unlock' it. I continued to try to sign off the loads in our Maintenance computer; but to no avail. I notified my Lead and he would advise the Midnight Manager; in case Maintenance Control called back. It is now right before punch out and the noted items are still in place in the Plan Work of the above noted aircraft. Since I did not sign anything off for the work accomplished; but Maintenance Control has been advised.