The continued grounding of the 737 Max will affect Boeing, suppliers, and operators alike, and the longer the crisis goes on the more disruption to the industry it will cause. For the airline sector, the exposure also depends directly on the number of Max jets a particular operator has already taken in proportion to its total fleet. Even though the likes of Southwest Airlines await the return to the air of 34 grounded Max jets, the fact that it flies more than 700 airplanes—all 737NGs—no doubt mitigates the damage.
Several Max operators, such as Norwegian and Air Canada, have managed to maintain schedules through not only direct replacement with other types of 737s but with Boeing 787s flying fewer frequencies, for example. Other measures include wet leasing, lease extensions of unaffected aircraft types, or simply cancellation of some service. All such actions, however, threaten to increase unit costs, the burden for which might ultimately fall on Boeing in the form of compensation to the airlines.
Another effect few analysts have considered involves maintenance planning.
Read more at: www.ainonline.com