Did the new chancellor accidentally let slip the government's decision on Heathrow expansion during his first day in the new job?
Philip Hammond quickly corrected himself on BBC Radio 4's Today show on Thursday (July 14) after appearing to reveal the west London airport as the likely destination for a new runway.
Responding to a question from presenter Mishal Husain about airport expansion, he said: "On the decision about, erm, the location of London's, er, third, er, London's additional runway, that will be a decision for the new government to make and it will have to make that decision collectively."
Heathrow wants the additional runway planned for London to be a third runway at its airport, while Gatwick wishes to add what would be a second runway there.
It is not clear whether this slip of the tongue reveals anything about the government's intentions or was merely an unfortunate choice of words, but it will surely add to speculation over how the recent political upheaval affects Heathrow and Gatwick's chances of getting a new landing strip.
The leader of Hounslow Conservative Group this week called on Ms May to quickly rule out a third runway.
Councillor Peter Thompson claimed that as a local MP she was aware of the damaging impact he said it would have on the airport's neighbours.
Theresa May yet to declare Heathrow stance
After his initial stumble, Mr Hammond was quickly back on message, adding: "Obviously we haven't discussed it yet. A lot of work has been done and we will be sitting down to look at the output."
Heathrow's hopes of a third runway looked to have taken a severe bruising when Boris Johnson, a long-term critic of the airport's expansion plans, was briefly installed as favourite to become prime minister.
The new woman at No 10, Theresa May , has yet to make her views on Heathrow clear, but the Maidenhead MP has previously raised concerns about the impact of noise from the airport.
Transport secretary Patrick McLoughlin said following the outcome of the EU referendum that he could not foresee any announcement on airport expansion until October.