Dear Customer,

We need to let you know about some maintenance work that will be taking place on our network, as detailed below.

You are receiving a notification because we had an outage on one site where we ran an onload generator test a couple of months ago.

This type of change has been run regularly every three months on every site without impact for several years now.

However, with further investigation we found one of our pieces of kit had a power fluctuation and caused an outage to several customers who were not notified as this was completely unexpected.

It has now been decided that in all cases where we have the same manufactured piece of hardware, to notify our customers on that piece of kit as a risk to service only.

Customer Name  All

Planned Work Start (Local UK BST): 14/08/2014 23:00

Planned Work End (Local UK BST): 15/08/2014 06:00

Impact: This same test was carried out three months ago without issue, but we are letting you know as a precaution.

This is a risk only to service and you should see no impact whatsoever.

Site: Waltham Forest (Billet Road)

At Risk: Circuit

Reference A-End B-End Impact (5 Brook Drive HQ)

Duration 5mins