FAA Orders Jet Engine Checks

Federal regulators have ordered operators of 120 U.S. commercial and business jets to perform cold-weather engine tests. The move comes after the government received reports of three in-flight engine shutdowns during this week's cold snap.

CBS News Correspondent Bob Orr reports that the FAA order affects approximately 60 new regional commuter jets now being flown by Continental Express, American Eagle and Trans States Airlines.

The three in-flight engine shutdowns in the past week all were the result of cold-weather failures of "o-ring" seals inside the engines of Embraer 145 jets. The loss of oil can lead to an engine shutdown.

Now, whenever the temperature is below 32 degrees F, airlines must test for engine oil leaks. If leaks are discovered, the 50-seat passenger jets are not permitted to fly. Also, Rolls-Royce Allison, the manufacturer of the engines, is recommending airlines replace the existing o-rings even if no leaks are found.

The FAA order could result in the temporary grounding of some of the Brazilian made twin-jets and possibly, some flight delays. But, the engine maker says the fix can be quickly accomplished in about 30 minutes per engine, or one hour per plane.

About 50 corporate jets, Cessna 750 Citations, are affected by the FAA order since they are equipped with the same Allison engine.

The Embraer is a commuter airliner flown by Continental Express, American Eagle and Trans States airlines. The Cessna is a corporate jet.