DarkSnowyNight From United States of America, joined Jan 2012, 1211 posts, RR: 3 Reply 4, posted (1 year 4 months 3 days 8 hours ago) and read 3652 times:
As everyone else has said, it isn't necessary. CRJs only have the over wing exits because they don't have rear service doors like the Ejets do. These double as emergency exits, hence no need for overwings.
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