Please read the excerpt below from the Daily Maverick on 24 October 2019 and answer the following question: Profits go Boeing Boeing gone Boeing recorded a 53% drop in quarterly profit today, with much of the financial blow coming from its grounded 737 MAX fleet. The aircraft company posted a negative free cash flow of $2.89-billion for the quarter, down from over $4-billion in profit in the same quarter a year ago.

Discuss what could have caused Boeings negative free cash flow of $2,89 billion.