Cockpit oxygen problems persist in Air Force trainer flown in San Antonio

In summer 2018, the Air Force’s top commander said he had “high confidence” that a research team finally had figured out why the service’s basic training aircraft, the T-6A Texan II, suffered repeated failures of its cockpit oxygen system.

But the problem has persisted, even as inexperienced pilots are learning to solo in the Texan II over populated areas near San Antonio and other cities.

Potentially fatal “physiological episodes,” or PEs, that can hinder their ability to fly safely continue to occur – including 10 in the month after Gen. David Goldfein, the service’s chief of staff, made his optimistic remarks.