Question juridique clé
Whether the lower court violated the duty to investigate by relying on incomplete medical reports and denying the pension claim.
Solution extraite
The medical file was insufficient; additional medical investigations were required before deciding the pension entitlement.
Motifs extraits
The reports were brief and partly limited to arm function. They did not provide a reliable overall assessment of health and work capacity, so the administration could not rely on an Aktenbeurteilung alone.