arc-en-ciel:
A/c stopped exactly on the intersection of runways (11/29 and 15/33, landing was on 33), that's why the other runway can't be used, and AD had to be closed. LOT hangars are in the northeast part of the AD, near MIL apron, if you take a look at the chart. And no, AD certainly wasn't in emergency phase 7 hours prior to landing, there was no reason for it. As I said, first indication of any problems was only at final approach, HighSpeedAluminum is correct, altn gear extention malfunction was supposed to work correctly. So only after it's failure, AD was initially put on uncertainty phase, then alert (emergency).