UPDATE 3-Bombardier wins order for up to $3.29 bln from Delta
* Delta to replace 50-seater jets with 76-seater CRJ900
* Firm orders for 40 jets valued at $1.85 bln
* Embraer shares fall
Dec 6 (Reuters) - Delta Air Lines said on Thursday it would buy 40 Bombardier two-class regional jets, with the option to buy an additional 30, in a deal valued at up to $3.29 billion.
The order for the 76-seat CRJ900 aircraft comes as Delta, the No. 2 airline behind United Continental, moves to to retire smaller 50-seat jets that cost more to operate.
The orders were valued at $1.85 billion, with that rising to $3.29 billion should the options be exercised, Bombardier said.
Shares of rival Brazilian jet maker Embraer SA fell nearly 8 percent following the news. Delta had said in October that it was considering Bombardier and Embraer jets for the order.
Bombardier won its biggest jet deal of $7.8 billion from Swiss charter operator VistaJet for up to 142 global aircraft last month.
Delta's feeder carriers currently fly Bombardier 466 CRJ Series planes. Continued...