Key legal question
Whether the 1998 full disability pension could be reconsidered under Art. 53 para. 2 LPGA as manifestly erroneous.
Extracted holding
Yes. The original pension award was manifestly erroneous because it had been based on an abstract medico-theoretical capacity assessment without a proper economic evaluation of work capacity.
Extracted reasoning
The file supporting the 1998 decision contained no assessment of residual work capacity and relied mainly on very old or dossier-based medical opinions. That formal defect justified reconsideration.