Key legal question
Whether the insured breached a duty to notify, allowing retroactive repayment of pension benefits.
Extracted holding
No. The duty to notify concerns changes after entitlement begins; no relevant change was shown, and the insured neither knew nor had to know of the office's mistaken income calculation.
Extracted reasoning
The insured correctly reported his salary and had no reason to realize that the IV office derived an incorrect hypothetical income from the medical assessment. A mere job change without change in earning capacity was not reportable. As a layperson, he also had no duty to detect the legal error in the pension decision.