This tells you the condition.
Before you handle a fire, you must understand the rules. This section defines "crew actions," "stabilized approach," and how to use the checklists (Challenge/Response versus Read & Do).
Airlines do not just hand pilots the Boeing 737-800 QRH and send them flying. Simulator training is brutal and repetitive. Pilots practice "The Golden Rule":
"Aviate, Navigate, Communicate, then... QRH." boeing 737-800 qrh quick reference handbook
In a Level D simulator, instructors throw multiple failures:
The goal is to build muscle memory so that when the adrenaline spikes, the pilot’s hand instinctively reaches toward the center pedestal where the QRH lives.
Myth 1: "The QRH tells you WHY it failed." Reality: No. The QRH only tells you HOW to respond. Troubleshooting comes later via maintenance. The pilot’s job is to contain the emergency, not fix the plane. Myth: "All 737 QRHs are identical
Myth 2: "You run the QRH from page one." Reality: You never use the QRH during normal operations. You only open it when an alert occurs. You jump directly to the relevant checklist via the Index.
Myth 3: "The QRH covers every possible failure." Reality: It covers probable failures. For freak events (e.g., a bird destroys both hydraulic systems—The "Sully" scenario), the QRH provides a "Partial Panel" or "Manual Reversion" checklist, but the crew must apply airmanship beyond the manual.
The genius of the QRH lies in its physical and digital organization. Traditional paper versions use edge indexing (colored tabs) and a "read-and-do" format, where each step must be completed and verified before moving to the next. The chapters follow a logical crisis flow: Myth: "Memory items are for rookie pilots
Modern 737-800 fleets increasingly use an Electronic QRH (E-QRH) on a tablet or integrated display. While offering faster keyword search and lighter flight bags, the paper QRH remains a non-negotiable backup, immune to battery failure or screen glare.
If you have never seen one, a physical QRH is roughly 8.5" x 11", spiral-bound to lie flat on the center pedestal, and printed on durable, tear-resistant paper. In modern cockpits, it is often hosted on an Electronic Flight Bag (EFB) like the iPad, though many airlines keep a paper backup.
Here is how the Boeing 737-800 QRH is typically organized:
A unique aspect of the 737-800 QRH is the heavy performance section. If your flaps jam in transit, you cannot land at normal speed. The QRH provides specific landing distance factors, correction tables for ice, and engine-out climb gradients. This section answers the critical question: "Can we land safely on this runway with this failure?"