While I am not the world's greatest typist, the time it has taken to type THIS sentence is approximately the time available for the entire process on BA038, from recognition of problem to arrival.
And that's without the time for some minor corrections after the fact - an opportunity the flight crew did not have.
They took and passed with honours one of the shorter courses in test piloting in the whole history of aviation.
It seems a very satisfactory result, all considered. Job well done.