What's with 9A 'no window'

[2infinity]

It was recently pointed out to me by a colleague that 9A on a Boeing 737 does not have a window, but 9F on the opposite side does. I'm not sure if this is the case for all Boeing 737's, but on a recent flight I checked it out myself as I walked past to the back of the plane, and yes, it was the case.

So does anyone know why there is a window at 9F but not 9A?

 

[Happy Trails]

Reportedly due to A/C ducting routed through that section of the fuselage.
Asked and answered here, with some nice graphics:
Boeing 737 Window Gap - Airliners.net

 

[AIRwin]

So does anyone know why there is a window at 9E but not 9A?

9F is the window seat not 9E

 

[2infinity]

9F is the window seat not 9E

That was just a test to see if the AFF community was paying attention. You passed.

original post edited.

 

[AIRwin]

That was just a test to see if the AFF community was paying attention. You passed.

Passed with FLYING colours!