Questione giuridica chiave
Whether the pension revision/reconsideration was permissible despite no relevant change under Art. 17 ATSG.
Decisione estratta
The revocation was based on reconsideration under Art. 53(2) ATSG, not revision under Art. 17 ATSG; knowledge of the child's birth at the earlier decision was irrelevant.
Motivazione estratta
A formally final decision may be revisited if it is manifestly incorrect and correction is significant. This allows correction of an incorrect legal assessment or factual appraisal ex nunc et pro futuro, even if revision requirements are not met.