Plane maker Boeing Co delivered just four commercial planes in May, which is the lowest monthly total in six decades.
It was even fewer than the six delivered in April and 87% lessr than total deliveries in May 2019.
Deliveries are crucial to Boeing’s finances as it is when airlines pay most of the purchase price.
Boeing said orders for another 18 planes were cancelled last month including 14 737 Max jets.
The company has just resumed production of the still grounded aircraft model and expects to make deliveries later this year.
Boeing did ssecure nine new orders but all are for cargo or military customers with none from commercial airlines.
Several carriers including Southwest Airlines and United Airlines have cancelled or deferred deliveries, widening the deficit of net orders.
Rival Airbus recently said it may take legal action against defaulting airlines with plane orders that are unwilling to compromise on their commitments.
