engine start
 

In 737-800 why we start Engine No. 2 first? the reason is not mentioned in the FCOM.

my friend,, most of the aircraft's start the right engine first which is number 2 for a lot of reason's all i can find is

You start the engine that you can hear but not see first Engine number 2 listen for any anomalies during start up ,

Next you start the engine you can see which is number 1 but not hear -you may not hear any problems with the number 2 engine already turning

but also there is a lot of reasons

Nimer767,

How the 'flight deck crew' are going to hear the right engine and not the left engine? How are they going to see the right engine and not be able to see the left engine?

Starting and outboard engine (#2) stems from the days of piston engines when it took a little longer to get an engine started. To save time the procedure was to start an outboard engine whilst the last of the pax were boarding and by the time the doors were closed you were ready to start #1.

These days with turbine engines, and most of the cargo compartment doors on the starboard side the practice has largely died out. :ok: