All of those systems are to be tested for Year 2000 problems before Dec. 31, but the FAA said the additional tests are necessary to ensure that the airports identify and address any unforeseen problems with date-sensitive airfield equipment and systems.

CNN: Airports resist new Y2K tests

With the aircraft's fuel pump, navigation equipment and radio paralysed, the pilots glided the plane to a lower altitude and landed it on an airfield near the village of Izhma in the Komi region, about 1, 500 km (930 miles) from Moscow.

BBC: System failure plane makes 'miracle' landing in Russia