Key legal question
Whether the revision and termination of the half disability pension were lawful after the change in personal and economic circumstances.
Extracted holding
The revision ground was met and, applying the mixed method, the claimant's disability remained below the pension threshold.
Extracted reasoning
The birth of the child and the resulting shift to a partly employed housewife status constituted a relevant change in circumstances under Art. 17 ATSG. Under the mixed method, even accounting for interaction effects, the resulting disability degree was below 40% and did not justify a pension.