Originally Posted by
T54A
I've always wondered why companies use their SOP as opposed to the OEM SOP. Why do some people think they know better than the guys who actually made the machine?
IMHO the main reasons airlines go for manufacturer's checklists rather than own procedures are money saved on devising and revising own procedures and reducing liability. If line crews have to put up with less than optimum procedures doesn't bother those in charge.
Can't speak for Airbus but some aspects of original Embraer E-Jet checklists are ill suited for a multiple sector operation and some redesign would allow for a more streamlined ops. E.g. the company checklist on a previous airplane was designed to minimise the number of items to be checked between closing of doors and pushback. Some manufacturers publish separate procedures for optional equipment or optional procedures (such as RNP approaches) which airlines using them frequently might want to include in their normal checklists.
I also knew an airline that would use similar procedures on all their planes to ease transition between models. It's a common topic in training that people "fall back" to previous airplanes' procedures under stress (e.g. go-around callouts, calling out malfunctions).