Investigation of occurrences at aerodrome
17.—(1)  A certified operator of an aerodrome must conduct an investigation to identify safety issues with a view to remedying them if —
(a)a reportable safety matter specified in paragraph 1 of the Fourth Schedule occurs on or after 1 March 2023 at the aerodrome, unless the Director‑General of Civil Aviation waives this requirement in any particular case; or
(b)the Director‑General of Civil Aviation requires any other incident to be investigated.
(2)  A certified operator of an aerodrome must ensure that each personnel carrying out the investigation required by paragraph (1)(a) or (b) is technically competent and is provided with relevant information pertaining to the investigation.
(3)  A certified operator of an aerodrome must submit to the Director‑General of Civil Aviation a report of each investigation required by paragraph (1)(a) or (b) and carried out by the certified operator, within one month after the date the reportable safety matter or incident being investigated had occurred at the aerodrome (or any longer period that the Director‑General of Civil Aviation may allow in any particular case).
(4)  A certified operator of an aerodrome must keep, for the period specified in the Third Schedule, a record of the investigation report submitted to the Director‑General of Civil Aviation under paragraph (3).