5.  Where an officer has made an application to purchase a flat under the Ministry of Defence Housing Scheme and has obtained a housing loan from the Government or the Minister for Finance to finance the purchase of the flat, the Board may, on the application of the officer and subject to such terms and conditions as the Board may impose, authorise the whole or part of the amount standing to his credit in the Fund to be withdrawn from the Fund and paid to the Government or the Minister for Finance for the repayment of such housing loan.