“(1) If a court is satisfied that a will is so expressed that it fails to carry out the testator’s intentions, in consequence— (a) of a clerical error; or (b) of a failure to understand his instructions, it may order that the will shall be rectified so as to carry out his intentions. (2) An application for an order under this section shall not, except with the permission of the court, be made after the end of the period of six months from the date on which representation with respect to the estate of the deceased is first taken out. (a) of a clerical error; or (b) of a failure to understand his instructions, “The subsection requires the court to examine three questions. First, what were the testator's intentions with regard to the dispositions in respect of which rectification is sought? Secondly, whether the will is so expressed that it fails to carry out those intentions. Thirdly, whether the will is expressed as it is in consequence of either (a) a clerical error or (b) a failure on the part of someone to whom the testator has given instructions in connection with his will to understand those instructions.”
“are to be construed as meaning an error made in the process of recording the intended words of the testator in the drafting or transcription of his will.”
“... extends to cases where the relevant provision in the will, by reason of which the will is so expressed that it fails to carry out the testator's intentions, has been introduced, or, as in the present case, has not been deleted, in circumstances in which the draftsman has not applied his mind to its significance or effect.”