Kernrechtsfrage
Whether the conditions for revising the full disability pension under Art. 17 LPGA were met.
Extrahierter Entscheid
No significant improvement in the insured person's health was established; revision grounds were absent.
Extrahierte Begründung
The factual findings showed no relevant physical or psychiatric improvement between the full-pension decision and the reduction decision, so the original pension basis had not changed materially.