Key legal question
Whether the pension revision and termination under Art. 17 ATSG were justified by a relevant change in health or earning capacity.
Extracted holding
A revision requires a proven material change in circumstances during the relevant comparison period; the record showed at most a different medical assessment of largely unchanged findings, not a legally relevant improvement.
Extracted reasoning
The cantonal court merely reassessed disability instead of establishing a change in facts. Conflicting medical reports did not show a clear change in health status since the original award, and a new diagnostic view alone is insufficient for revision.