Boeing 737-800 Technical Manual -

But this wasn’t a quick problem.

In the cockpit, the master caution light blazed. Captain Ellis scanned the screens: IRS fault, FLT CONTROL LOW PRESSURE, AUTO THROTTLE DISCONNECT . The first officer, young and sharp but only 300 hours in type, started reading the QRH—the quick reference handbook. boeing 737-800 technical manual

"Because Boeing wrote this for the people who really know the airplane. And sometimes, the pilot needs to think like a mechanic." But this wasn’t a quick problem