142.—(1) This regulation applies if a member (D) has not reached prospective normal pension age and—
(a)dies in service; or
(b)dies as a pensioner member after an ill-health pension and a total incapacity pension become payable to D.
(2) If this regulation applies, the long-term rate of surviving adult pension is 37.5% of the sum of the following amounts—
(a)the amount of D’s accrued earned pension as at the date of D’s death; and
(b)the amount found by multiplying half D’s prospective service (in years and fractions of a year) by 1/57th of D’s annual rate of pensionable earnings as at the date of D’s death.
(3) In this regulation, “D’s prospective service” means the period (in years and fractions of a year) beginning with the day after the date of D’s death and ending on the day on which D would have reached prospective normal pension age.