Re: [SystemSafety] EASA Notice of Proposed Amendment 2014-13

From: Martyn Thomas < >
Date: Tue, 22 Jul 2014 09:39:12 +0100

It's worth a look.

The draft has clearly taken a lot of effort. It's 230 pages with extensive guidance material.

It will be interesting to see the approach that service providers take to meeting the requirements that are placed on them. Footnote 41 says, in part, "Demonstrating that something behaves only in accordance with its specification can be extremely challenging, but is nonetheless required. " Footnote 42 adds "And that the specification is complete i.e. it does nothing else. ".

Elsewhere, the draft makes it explicit that a requirement that is placed on a service that is provided using a computer system applies also to the software that is part of that computer system.

Challenging indeed.


On 21/07/2014 12:32, Peter Bernard Ladkin wrote:
> EASA has issued a Notice of Proposed Amendment concerning changes to ground-based systems used in
> civil aviation. This includes systems for air traffic control, for communication and navigation, and
> indeed for air traffic management in general and any support systems.
> It is downloadable from
> The official date is 24 June, 2014 and the consultation period is 3 months.

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systemsafety_at_xxxxxx Received on Tue Jul 22 2014 - 10:39:26 CEST

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