Erratum: Errata (SAE International Journal of Aerospace DOI: 10.4271/01-13-02-0017)

The following sentence of the paper has been removed: Cockpit boredom and alertness levels of pilots have long perplexed the literature [38] until recently in the COVID-19 crisis [39]. References 38 and 39 have been removed. References 40 through 48 have therefore been renumbered. © 2021 SAE International.