Hi all, I have noticed in some photos of Southwest's 737-300's and 737-500 there are no EFIS screens. The flight deck resembles that of a 737-200. I thought that all 737-3/4/500 had an electronic ADI and HSI, I know that the early ones had analogue engine displays, but these still had an electronic ADI and HSI.
My question is, why have southwest got 737-300's and 500's with a completely old style flight deck.
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Photo © Ben Graden
Was it a request for commonality with its 737-200's to save costs?
Thoughts would be appreciated