09/09/2011 05:39 EDT | Updated 11/09/2011 05:12 EST

Russian aviation experts hampered by wet data recorder boxes from plane crash that killed 43

MOSCOW - Russian aviation experts say they are running into some problems as they examine the flight recorder boxes from a plane that crashed this week, killing 43 people.

The Interstate Aviation Committee said on its website Friday that the magnetic tapes holding the flight information are still wet and they can't begin deciphering them until after they had dried out.

Investigators have not yet been able to pinpoint what caused the Yak-42 jet to crash Wednesday into the banks of the Volga River shortly after takeoff from Yaroslavl, 150 miles (240 kilometres) northeast of Moscow.

The crash killed 36 ice hockey players, coaches and staff of the Lokomotiv Yaroslavl team.

Aviation authorities say they will inspect all Yak-42 jets currently in service in Russia.