Thanks to Leco from Teorias LOST Brazil for the follwoing.
During the Ajira crash, we can listen the numbers on radio. But, Rousseau change the record transmission, right? This happened when... 1988? 1990?
The Ajira airplane crashes on the island in 2007 or 2008!!
What did you think about? Its like "Moonlight Serenade" at episode "The Long Con", were Sayid said ("Sayid said" is funny!) that it could came from anywhere... and Hurley says "or any time!"!?
Cheers, Man... Namastê!
Source: Teorias LOST Brazil