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Despite its reputation for top-notch engineering and meticulous maintenance of jet engines for carriers, Rolls-Royce then faced a major challenge. While the company was winning plaudits from investors for expanding its franchise and winning billions of dollars of new business in the fast-growing regional-Tiffany Nature Daisy Earrings and Necklace Set segment, serious operational troubles cropped up on Brazilian-made Embraer 135 and 145 jetliners.

From Brazil to the U.S to Europe, government regulators collected information about various types of hazardous in-flight engine malfunctions on the twin-engine commuter planes, built by Empresa Brasileira de Aeronautica SA and powered by Rolls-Royce AE 3007 engines. Safety experts became particularly concerned about the tendency of some of the engines to suddenly shut down without warning, often during takeoffs or Dove Pendent Necklace and Earrings Set climbing away from airports. Certain problems typically cropped up during the first months of passenger service.

By the fall of 2000, the U.S. Federal Aviation Administration had collected details of at least seven spontaneous shutdowns in the air due to defective engine-control hardware; five more engines that were turned off by pilots because of bearing failures; and three flights after which pilots couldn't shut offTiffany & Co Atlas Set engine. The FAA ordered Embraer and Rolls-Royce to take swift action. The fear was that without any input from pilots, both engines of a regional jet could stop working and result in a catastrophe.

But Rolls-Royce rolled out its technical experts. At the urging of the jet manufacturer, the engine-maker and various airlines, the FAA made the controversial decision to allow U.S. carriers to continue operating the affected jets so long as at least one engine on each plane was fitted with upgraded digital controls. At the time, a high-ranking agency official acknowledged the planes didn't "fully meet the design requirements" mandated Elsa Peretti Open Heart Pendant in Sterling Silver federal rules and regulations. But they remained in service, he said, because the FAA determined the threat of a dual-engine failure "was very minimal." Pilot-union leaders, federal crash investigators and outside safety experts strongly objected.

Around the same time, the FAA issued an emergency safety directive ordering airlines to take extra precautions to prevent oil leaks on the same family of engines during cold-weather starts and takeoffs. Regulators also issued separate orders for aggressive inspections of certain bearings on the Rolls-Royce engines prone to premature failures, and mandated installation of new sensors to prevent oil-pressure discrepancies from prompting pilots to halt takeoffs.