Authorities investigating the 2008 crash of Spanair flight 5022 have discovered a central computer system used to monitor technical problems in the aircraft was infected with malware.
An internal report issued by the airline revealed the infected computer failed to detect three technical problems with the aircraft, which if detected, may have prevented the plane from taking off, according to reports in the Spanish newspaper, El Pais.
What kind of OS are these planes running that they're susceptible to malware? Please don't tell me commercial planes are controlled with Windows.

years ago Gates said he wanted windows to be the basis of all computer controls.
What could possibly go wrong with that? Windows is the most successful OS ever!
It’s not the computers on the plane, it’s a computer in the maintenance hangar of the airline.
ah.
that’s a bit better.