Japan launches a survey on the iPod Nano

As a reaction to an enflaming iPod Nano battery, the Japanese government has launched a survey.
Apple will have to prepare a report that describes into detail under which circumstances such an accident could have happened, and will also have to provide the source and production numbers of these batteries.
The survey applies to iPod Nano models sold between September 2005 and September 2006, with the model number MA099J/A.
We hope for Apple that this is an isolated accident, and that there's no greater problem with all of these batteries.
About 425000 iPod Nano's of this type have been sold in Japan.