4.—(1) Where a person in receipt of the secured portion of an ill-health pension, the unsecured portion of which has been terminated in the circumstances mentioned in Regulation K1(4), is also in receipt of some other pension, being an ordinary, short service, ill-health or deferred pension, and is entitled to reckon for the purposes of that other pension the period of pensionable service reckonable for the purposes of the ill-health pension then, in respect of any period beyond state pensionable age, the unsecured portion of that other pension shall be reduced in accordance with sub-paragraph (2).
(2) The reduction shall be calculated at the annual rate which is that of the secured portion of the ill-health pension.