Boeing says it issued the advisory after ice crystal formation in some instances diminished engine performance. Boeing recommended that affected planes fly at least 50 nautical miles from thunderstorms that may contain ice crystals.
By MARTIN CRUTSINGER, AP Economics Writer, Seattle Post-Intelligencer: Business
Sat, 11/23/2013 - 2:16pm
Boeing says it issued the advisory after ice crystal formation in some instances diminished engine performance. Boeing recommended that affected planes fly at least 50 nautical miles from thunderstorms that may contain ice crystals.