United Airlines' six 787s will be out of action until further notice, joining planes from India, Chile, and Japan, as well as aircraft under the European regulators' aegis.
Biofuel-powered airplane flights have been getting lots of press recently, but powering planes with algae, jatropha, and camelina isn't the only way to save on traditional jet fuel. Air India, the country's national airline, has saved $9.26 million over six months with simple energy-saving techniques.