Section 15A(2) in The Employee's Compensation Act, 1923
(2)In the case of the death of the captain or other member of the crew, the claim for compensation shall be made within one year after the news of the death has been received by the claimant or, where the aircraft has been or is deemed to have been lost with all hands, within eighteen months of the date on which the aircraft was, or is deemed to have been, so lost:Provided that the Commissioner may entertain any claim for compensation in any case notwithstanding that the claim had not been preferred in due time as provided in this sub-section, if he is satisfied that the failure so to prefer the claim was due to sufficient cause.