Kernrechtsfrage
Whether the appellant could obtain retroactive payment of the child disability pension back to 1989 despite late registration.
Extrahierter Entscheid
No. Any entitlement to arrears older than five years before the registration was forfeited.
Extrahierte Begründung
Even if the administration failed to inform her properly, arrears claims are subject to the absolute five-year forfeiture period running back from registration; the reasons for the late award do not matter.