(This measure has not been amended since it was introduced. The expanded summary of the House reported version is repeated here.) Transparency in Technological Acquisitions Act of 2017 (Sec. 2) This bill amends the Homeland Security Act of 2002 to require the Transportation Security Administration (TSA) to submit annually (currently, biennially): an update to its strategic five-year technology investment plan, and a report on the extent to which security-related technology acquired since the last issuance or update of the plan is consistent with the planned technology programs and projects identified for that security-related technology. The TSA shall also include information about acquisitions completed during the fiscal year preceding the fiscal year during which such report is submitted. The TSA shall: report to Congress on any TSA equipment that is operating after the end of its life-cycle or the end of its useful life projection under the plan, and notify airports and airlines of any changes to the plan.