In 2009, David Cameron said “no ifs no buts - there'll be no third runway at Heathrow airport.”
Now residents and group of MPs certainly are trying to make him remember this fact.
A campaign group is heading to Downing Street today calling on David Cameron to honour his promise.
It comes as the chance to have a say on airport expansion closes today.
The Airport Commission will consider it's three shortlisted options;
1. Lengthening an existing runway at Heathrow
2. Building a new Heathrow runway.
3. Building a new runway at Gatwick.
Joining Headline London to discuss the potential outcomes of the new plans on Headline London were Rob Gray from Back Heathrow and Cait Hewitt from Airport Watch.
John Stewart, Chair of Heathrow Association Control of Aircraft Noise, joined Wake Up to discuss the letter and what it hopes to achieve.