Tapping a system fault can automatically calculate landing performance based on current weather.
Certain time-critical emergencies require pilots to act without looking at the book. Pilots execute these steps from memory, then open the QRH to verify they were performed correctly. Examples include:
Located on the front cover or first pages, this index lists time-critical emergencies like engine fires, rapid depressurization, and rejected takeoffs.
To use the Boeing 737-800 QRH effectively, flight crews must adhere to these baseline principles:
The 737-800 QRH is designed for rapid navigation under extreme stress. It utilizes a tabbed, multi-section format categorized by aircraft systems, mimicking the layout of the overhead panel. Section Organization boeing 737800 qrh quick reference handbook
If you're looking to explore specific elements of the handbook further,g., Runaway Stabilizer or Rapid Depressurization)
– Manual gear extension and brake malfunctions.
It is important to distinguish the QRH from other key flight documents, such as the . While the FCOM is a comprehensive, multi-volume encyclopedia of every system, procedure, and performance aspect of the aircraft, the QRH is its condensed, practical counterpart. The QRH extracts the most essential information—checklists, memory items, and performance tables—and presents it in a streamlined, rapid-access format.
When a system fails, master caution lights illuminate, or an engine loses power, the flight crew does not troubleshoot from memory or guess a solution. They stabilize the aircraft and immediately turn to the QRH to execute the exact, manufacturer-approved steps required to safely mitigate the issue. 2. Structure and Organization: Anatomy of the QRH Tapping a system fault can automatically calculate landing
Don oxygen masks, establish crew communications, initiate emergency descent. Dual engine flameout due to fuel, volcanic ash, or weather.
These are the "memory items." For catastrophic failures like or Cabin Altitude Warning , there is no time to read. Pilots must memorize these steps. The QRH serves as a confirmation tool after the immediate action is taken.
– Engine fires, severe damage, flameouts, and limit surges.
A brief, italicized description explaining why the checklist is being read (e.g., Condition: An engine fire is indicated... ). Examples include: Located on the front cover or
The QRH differentiates between situations requiring immediate, instinctive action and those allowing time for deliberation. Memory Items (Recall Items)
: The physical QRH is built for durability—it has a robust cover and no metal parts that could interfere with cockpit equipment. It uses a unique "arrow" format in newer versions, allowing pilots to follow procedures without flipping pages unnecessarily. The Quick Action Index (QAI)
Example: Cabin Altitude Warning
Several common failures illustrate how the QRH keeps flights safe: