Sorry for the delay, I was on an 11.4 hour trip to Tesco.
Where was the departure? That seems an odd mistake to make. A bit dangerous too, given the extra fuel used.
Departure was from Trepassey Newfoundland according to Wikipedia.
A much better source is 'Amelia Earhart - The Sound of Wings' but I don't have it in front of me right now. I think Ireland was overcast so they never saw it.
And if you think that was a close call with the fuel, google 'Howland Island'. By today's standards, the accident occurred before they took off.