Commercial Telecoms

Heightened change control schedule

What is happening?

We are alerting you to the restricted Change Control periods up to 2019, to help in your planning and preparation.

What will be the impact?

During these periods, changes will be subject to greater scrutiny and higher levels of approval unless the change is to address a major incident.

When is this happening?

Changes should be avoided from being implemented on these days, unless they are Emergency Changes.
Changes can be implemented on these days, but may be subject to being moved to outside the Amber period.

Start date (from 00:01) End date (at 23:59)
21st December 2018 26th December 2018
31st December 2018 2nd January 2019
3rd January 2019 7th January 2019
18th January 2019 19th January 2019
18th February 2019 24th February 2019
25th March 2019 28th March 2019
29th March 2019 30th March 2019
1st April 2019 5th April 2019
6th April 2019 18nd April 2019
19th April 2019 22nd April 2019
4th May 2019 5th May 2019
6th May 2019 7th May 2019
27th May 2019 28th June 2019
28th May 2019 2nd June 2019
24th August 2019 25th August 2019
26th August 2019 27th August 2019
21st December 2019 22nd December 2019
23rd December 2019 27th December 2019
28th December 2019 30th December 2019
31st December 2019 2nd January 2020


  • All terminals/areas are affected.
  • Further updates to this alert may be issued as Airport peak operations data using daily business plan passenger totals becomes available.
  • With the exception of emergency break fixes, all changes will be subject to at least 24 hours of stability on any system being changed.
  • Test systems that are totally isolated and other areas that are isolated from production environments are excluded from these specific periods.
  • This Change Control alert does not apply to break fixes on production systems (i.e. not test or development) as a result of an incident or system alert.