Letters to Owners and Operators (LTOs) were issued by the CAA to owners and operators of
aircraft on the UK register.
They generally contain information relating to a variety of technical issues, for example, reminders of forthcoming
requirements or clarification of the interpretation of Airworthiness Directives.
LTOs are not mandatory in themselves; however, they may contain significant airworthiness information received
from a foreign Aviation Authority or refer to a rule or regulation that is mandatory. The following are still
current, however we no longer issue LTOs, we now issue Safety Notices.
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13 July, 2018
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24 May, 2018
Airspace change process for Glasgow Airport
4 April, 2018
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International women in engineering day
22 June, 2017
Mandatory occurrence reporting
7 December, 2016
Guidance for flying drones
17 May, 2016
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