Questão jurídica principal
Whether the disability pension could be reduced retroactively and from which date the reduction took effect.
Decisão extraída
The appeal did not succeed on the timing point; the reduction from 1 February 2009 was not disturbed, and the Court saw no need to go beyond the parties' requests.
Fundamentação extraída
Under Art. 88bis para. 2 lit. a IVV, reductions or abolitions take effect only from the first day of the second month after notification. A retroactive confirmation is possible, and the appellant did not challenge the timing directly.