Key legal question
Whether the federal appeal was filed within the statutory deadline and whether an earlier filing could count as a valid appeal or supplement.
Extracted holding
The appeal was untimely; the earlier filing merely announced an intention to appeal and did not constitute a valid appeal.
Extracted reasoning
The 8 September 2009 submission contained no request or reasoning against the Aargau decision, only a notice that an appeal would be filed later. The actual appeal of 21 September 2009 was therefore not a supplement to a timely appeal and was itself late.