Some checklists lead to "deferred items" that must be completed later in the flight, such as approach and landing adjustments for a failed system. Key Visual Symbols Diamond (
While Boeing is testing "Checklist Guidance Systems" that sync with the FMC, the physical QRH remains. For the 737-800, which will fly for another two decades as the backbone of global low-cost and regional carriers, the quick reference handbook isn't going away. boeing 737-800 qrh quick reference handbook