Brazilian carrier Gol has disclosed an agreement with Boeing to acquire up to 30 Next Generation Boeing 737-800s scheduled for delivery between 2014 and 2017.
The carrier's order book with Boeing now stands at 104 firm orders and 40 options.
A Boeing spokesman explains the orders were previously identified on the airframer's website, with 20 being accounted for in 2010 and 10 in 2009.
Gol expects to end 2010 with a fleet of 111 aircraft, 40 737-700s and 71 737-800s, and explains the agreement for 30 aircraft supports its 2014 fleet plan without increasing capacity.
Previously Gol has said it would keep six 767s that were originally placed into long-haul service in 2008. Two of those aircraft are subleased, and Gol uses the remaining aircraft for charter flights.