These are steps in non-normal procedures that must be performed instantly, without looking at a manual, because time is critical (e.g., rapid depressurization).
While not used for every flight phase (which is the job of the Normal Checklist card), some operational checklists are included for reference. How Pilots Use the QRH: The "Read-and-Do" Approach
(Generator failures, bus faults, and battery issues).
The QRH is a key component of CRM, ensuring the PF can focus on flying while the PM handles the diagnostic and procedural work in the handbook. Summary: A Pillar of Safety boeing 737800 qrh quick reference handbook
The Quick Reference Handbook (QRH) is a pivotal element of modern airline operations, bridging the gap between pilot training, aircraft systems knowledge, and the urgent demands of in-flight abnormal and emergency management. For the Boeing 737-800 — a workhorse of short-to-medium-haul fleets worldwide — the QRH represents a condensed, prioritized, and operationally tested body of knowledge designed to guide flight crews through time-critical and non-normal situations. This essay explores the QRH’s purpose, structure, human factors design principles, legal and operational context, typical content and flows for the 737-800, decision-making under pressure, integration with standard operating procedures (SOPs), limitations and risks, and future directions.
: Holding the control column firmly and cutting off the stabilizer trim switches. Reference Checklists
If the failure requires memory items, the PF calls for them, and both pilots execute their assigned physical actions. They verify each other's work—especially when shutting down an engine or cutting fuel. 4. Locate and Read the QRH Checklist These are steps in non-normal procedures that must
(Manual gear extension, anti-skid faults).
(Emergency evacuation, cockpit smoke, unreliability of flight instruments).
(Pressurization failures, equipment cooling, bleed air trips). The QRH is a key component of CRM,
The QRH offers several benefits to pilots and operators, including:
(Window heat or engine anti-ice malfunctions).
The bulk of the handbook, organized by aircraft system (Chapters 0–15), including: Air Systems: Pressurization and bleed air faults. Electrical: Generator or battery failures. Hydraulics: Loss of System A or B and standby system operations. Engines & Fuel: Aborted starts, fuel leaks, or engine failures. Unannunciated Checklists:
A brief, italicized description explaining why the checklist is being read (e.g., Condition: An engine fire is indicated... ).
The PM reads each item, and the PF (or PM, as designated) executes the step.