Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: American Airlines has cut its full-year profit forecast, blaming an estimated $350m (£270m) hit due to the grounding of its Boeing 737 Max aeroplanes.

737-Max hits American Airlines forecast