Wadia Group-owned Go First is open for partnerships but its promoters are not looking to exit from the loss-making aviation business, according to an airline source. The no-frills airline, beset with engine woes, is estimated to have incurred a loss of Rs 1,800 crore in 2022-23, and expects around Rs 600 crore fund infusion in the coming weeks, according to the source closely involved in the management of the carrier.