The 787 has composite wings which present a problem when paint peels. With aluminum it’s not a big deal to have an exposed patch but with composite they have to cover it because the suns UV rays can cause degradation of the composite over time, hence the speed tape covering all the small areas of peeling paint. It’s not a problem but it does look bad to customers I’ll admit. They’re likely waiting until the next heavy maintenance check to repaint that wing. Hopefully that’ll happen soon.
Exposed composite material makes sense.
Yes. They probably have to check it every cycle.