It's inevitable that at some point a company's business aircraft will be out of service. When that happens, business trips still need to be taken, so operators often look for supplemental lift. "When you look at the provider through the lens of how your passengers will view the experience, you should be able to easily determine if they [the service provider] will be able to replicate what your passengers are accustomed to," said Terry Lascher, director of operations, L.J. Aviation.
Read more here:: Business Aviation Insider: Vetting Supplemental Lift Providers