The problems with JetBlue Flight 292 marked at least the seventh time that the front landing gear of an Airbus jet has locked at a 90-degree angle, forcing pilots to land commercial airliners under emergency conditions, according to federal records. No one has been injured in the incidents, which span about a decade. There are more than 2,500 planes from the Airbus 320 family, which includes the Airbus 318, 319 and 321 models, in operation worldwide. Aviation safety officials Thursday said the planes have a good safety record. In the most recent case, JetBlue's flight from Burbank to New York's...