Can't have a negative record. Let's say we measure based on fatalities per km flown/passenger. Now, the Superjet has had some fatal accidents so I'd bet it'd

Can't have a negative record. Let's say we measure based on fatalities per km flown/passenger. Now, the Superjet has had some fatal accidents so I'd bet it'd score worse than any prod Boeing. If the Comac had a single accident, if would score just as bad. But you'd be basing it on a low sample size, so one could still claim it's a freak accident.