Complex sentence: Sakharine sends a seaplane to find them, which the trio seize and use to fly towards the fictitious Moroccan port of Bagghar, but the seaplane crashes in the desert, due to low fuel.
Split into simpler sentences: Sakharine sends a seaplane to find them, which the trio seize and use to fly towards the fictitious Moroccan port of Bagghar. However, the seaplane crashes in the desert, due to low fuel.