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By Gabriel Araujo

SAO JOSE DOS CAMPOS, Brazil, June 11 (Reuters) - Brazilian planemaker Embraer EMBJ3.SA said on Thursday its commercial aviation unit has a backlog of more than $15 billion and that the main engine issues affecting its next-generation E2 jets have now been resolved.

• The backlog estimate comes as Embraer disclosed last week a firm order for 15 E195-E2 jets from lessor Azorra.

• The backlog was at $15 billion at the end of the first quarter, up 50% year-on-year.

• The company is well positioned to meet guidance of 80 to 85 commercial aircraft deliveries in 2026, the unit's marketing vice president Rodrigo Silva e Souza told reporters.

• Embraer believes that by the end of 2026 there will be no E2 aircraft on the ground due to engine issues, Silva e Souza said.

• Engine makers have been facing pressure from airlines because of grounded aircraft and higher repair costs.

• E2's aircraft-on-ground (AOG) rate currently stands at 1% of the fleet, down from a high of 22% in March 2025, according to Embraer.

• E2s are powered by RTX's RTX.N Pratt & Whitney engines, which Embraer said are now undergoing improvements to perform better in hot, harsh environments.

• Despite "robust" backlog, Embraer still has production slots available before 2030, seeing it as an advantage over larger rivals Boeing BA.N and Airbus AIR.PA.

• Embraer focuses on jets seating up to around 150 passengers, below Airbus' and Boeing's best-selling A320 and 737 families.