In AeroVironment, Inc. (Mar. 30, 2016), following an apparent settlement of the government’s cost disallowance claim, the ASBCA denied the government’s request to amend its answer (in order to “clarify” entitlement to additional quantum) because the proposed amendments constituted new “claims” that required new final decisions.  Acknowledging that parties may ordinarily revise quantum without running afoul of jurisdictional concerns, in this case the Board found that the proposed amendments (which were premised on a new interpretation of FAR Parts 3l and 42, a different calculation methodology, and greatly increased the monetary stakes), involved different “operative facts” and “would alter the ‘essential nature’ and fundamental basis of the claim asserted in the final decisions,” over which the Board lacked jurisdiction.