# The Air Navigation Order 2016, Paragraph 4: Retention of records


The owner or operator of an aircraft must ensure that a system has been established to keep the records specified in column 1 of the table for the corresponding periods specified in column 2 of that table.
Column 1 - Record
Column 2 - Period
all detailed maintenance records in respect of the aircraft and any service life limited component fitted thereto
until such time as the information contained therein is superseded by new information equivalent in scope and detail but not less than
36 months after the aircraft or component has been released to service
the total time in service (hours, calendar time, cycles and landings) of the aircraft and all service life limited components
at least 12 months after the aircraft or component has been permanently withdrawn from service
the time in service (hours, calendar time, cycles and landings) as appropriate, since last scheduled maintenance of the component subjected to a service life limit
at least until the component scheduled maintenance has been superseded by another scheduled maintenance of equivalent work scope and detail
the current status of compliance with maintenance programme such that compliance with the aircraft maintenance programme can be established
at least until the aircraft or component scheduled maintenance has been superseded by
other scheduled maintenance of equivalent work scope and detail
the current status of airworthiness directives issued pursuant to article 41(1)(a) applicable to the aircraft and components
at least 12 months after the aircraft or
component has been permanently withdrawn from service
details of current modifications and repairs to the aircraft, engines, propellers and any other component vital to flight safety
at least 12 months after they have been permanently withdrawn from service

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Source: https://www.legislation.gov.uk/uksi/2016/765/schedule/7/paragraph/4 (the official version)
Page: https://openlegislation.uk/air-navigation-order-2016/schedule-7/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.