Honeywell F-22 Oxygen Systems Probed

A Honeywell Inc. system for providing oxygen to F-22 pilots is being investigated as a possible source for malfunctions that prompted the Air Force to ground its premier fighter jet after reports of five incidents since late April, according to officials. “The inquiry is not solely focused” on Honeywell’s on- board oxygen generating system, Air Combat Command spokeswoman Captain Jennifer Ferrau said in an e-mail. “However, that is one area investigators will look at.”

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