This scenario is fundamentally aboutlearning from post-project review, updating future assumptions, revising asset management planning, and ensuring the organization'sfinancial records and depreciation assumptionsreflect the new evidence. TheIAM Anatomy of Asset Management Version 4states that asset costing and valuation include the organization's end-to-end process for quantifying the financial value of assets in accordance withaccounting standards, and specifically includesdepreciationas the method used to establish theresidual or remaining livesof assets and the accuracy of depreciation calculations.

In your scenario, the asset was originally given a50-year depreciation life, but evidence from the post-project review now indicates the useful life is more likely30 years. Under IAM-aligned practice, that new information should absolutely be fed back intofuture modelling, project design and build, and theAsset Management Planshould be updated. In addition, because the revised life affects asset value, remaining life, and depreciation treatment, the financial function must be informed so that any required accounting adjustments can be assessed. That last step is an inference from IAM's explicit treatment ofasset valuation, depreciation, and alignment with the financial balance sheet.

Why the other options are incorrect:

Ais wrong because assigning blame is not the primary asset management response; the priority is learning, updating plans, and correcting financial implications.

Bis wrong because reducing maintenance simply to recover cost is not IAM logic and could destroy value.

Dmay become relevant later, but the question asks what to do with the information now; the immediate cross-functional requirement is also to notifyFinance.

Eis clearly wrong because the information materially affects planning assumptions and potentially financial reporting.

Therefore, the best IAM-aligned answer isC.