F-22 backup oxygen system to be inspected

The F-22 Raptor continues to have growing pains. The Air Force says it is implementing a technical order requiring the backup oxygen system in each F-22 to be removed, inspected and returned to service before that aircraft can fly again. The system, known as the Emergency Oxygen System (EOS), is designed to be used when the pilot is having physiological symptoms that indicate a problem with the main air supply.

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