LIMITATION ON RETIREMENT OF F-16C/D AIRCRAFT.

SEC. 144. LIMITATION ON RETIREMENT OF F-16C/D AIRCRAFT. (a) Limitation.—Beginning on the date of the enactment of this Act and except as provided in subsection (b), the Secretary of the Air Force may not retire, prepare to retire, or place in storage or on backup aircraft inventory status any F-16C/D aircraft until a period of 180 days has elapsed following the date on which the Secretary submits the report required under section 148. (b) Exception.—The limitation under subsection (a) shall not apply to individual F-16C/D aircraft that the Secretary of the Air Force determines, on a case-by-case basis, to be no longer mission capable and uneconomical to repair because of aircraft accidents, mishaps, or excessive material degradation and non-airworthiness status of certain aircraft. (c) Information to Congress.—For each F-16C/D aircraft that the Secretary of the Air Force proposes to retire in a fiscal year, the Secretary shall include, in the materials submitted by the Secretary in support of the budget of the President for that fiscal year (as submitted to Congress under section 1105(a) of title 31, United States Code), a description of— (1) each upgrade and modification made to such aircraft, including— (A) the date of the upgrade or modification; and (B) the cost of such upgrade or modification in current year dollars; and (2) the estimated remaining service-life (expressed as equivalent flight hours and years) of— (A) the aircraft; and (B) the onboard systems of the aircraft.