PMP Certification Closing Test 1

A team needs to install a large piece of equipment for a project, which can only be done when the plant is shut down. Plant shutdown is planned every year during the second week of May. Earlier in the project, the project manager identified a corresponding risk of project delay due to missing an installation window. At the end of April, an accident occurs that causes the plant to have an unplanned shutdown. The project team reschedules and completes the installation of the major equipment during this time.
What should the project manager do next?