From BBC:
The American Federal Aviation Authority has ordered US airlines to inspect more than 1,400 Boeing jets to see if they have a potentially faulty fuel pump which could lead to an exploding fuel tank.
The FAA say the pumps could have a problem with wires that were placed too close to a rotor and can chafe - although there have been no serious incidents yet.
The pumps were installed in January and April by a California company on Boeing 737s, 747s and 757s.
The airlines were given four days to inspect their fleets.