Definition of "impounding"

Since the accident, Cranfield Airport Air Navigation Service has issued supplementary instruction CIMS-CF-ATC-001-SI 02/21 regarding the impounding of recordings. This exceeds the current CAA regulatory requirement and will result in all video recorded by this digital tower being retained after an accident or serious incident, in addition to RTF and radar recordings.

2022 July 21, Air Accidents Investigation Branch, “Analysis”, in AAIB investigation to DA 40 NG, G-CTSB‎, archived from the original on 19 September 2023