The parties did not reach an agreement on a fixed-cost estimate within the timeframe set under the PAAP Pilot and, therefore, PW 888 should proceed under standard PA procedures. In addition, the Applicant has not demonstrated that requested changes to the approved SOW are justified. The project can proceed based on the approved cost estimate until actual costs can be assessed at final reconciliation. Additionally, the Applicant has not demonstrated that FEMA improperly reduced eligible costs by insurance proceeds for building damage and contents damage or provided documentation to support reimbursement of costs to prepare its insurance adjuster’s estimate. Therefore, the appeal is denied.