Sounds like a bad keyboard the keys ***A*** & ***D*** share the same row line with ***S*** but they use different column lines! so ***Q*** & ***E*** should also be affected too, if not then the given keys are bad.
Sounds like a bad keyboard the keys ***A*** & ***D*** share the same row line with ***S*** but they use different column lines! so ***Q*** & ***E*** should also be affected too, if not then the given keys are bad.
Contact iFixit for a replacement.