Questione giuridica chiave
Whether the ongoing disability pension could be reduced through revision under Art. 17(1) ATSG.
Decisione estratta
No. The facts had not materially changed during the relevant period, so a pension revision was excluded.
Motivazione estratta
The Federal Court was bound by the lower court's factual finding that there had been no significant change. On that basis, the statutory conditions for revision were not met.