GE Airline-Engine Flap Further Mars FAA Oversight

From the Wall Street Journal
In another embarrassing maintenance blunder involving the aviation industry, General Electric Co. disclosed it is working with carriers and U.S. regulators to resolve questions about improperly certified parts in dozens of its jet engines. The parts, installed in certain upgraded versions of GE engines without the required federal authorization or supporting engineering data, will likely add to concerns about government enforcement of maintenance rules. The Federal Aviation Administration said it has known about the problem for more than five years, monitored GE's initiatives and, until recently, believed none of the parts in question were being used.
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