Qrh Exclusive ((top)): B777

| Condition | Immediate Action | |-----------|------------------| | | Autothrottle (A/T) disconnect → Thrust lever (affected) idle → Fuel control switch CUTOFF → Fire handle PULL → Agent 1 (after 1 sec) → Agent 2 if needed | | Cabin Altitude Warning / Rapid Depressurization | Don oxygen masks (100%, emergency) → Establish crew comms → Passenger oxygen on → Descend to 10,000 ft or MEA | | APU Fire on Ground | APU fire handle PULL → Agent discharge → Evacuate if fire persists | | Runaway Stabilizer | Control column hold → Stabilizer trim CUTOUT (both) → If needed, Stabilizer trim MANUAL | | Loss of Thrust on Both Engines | Engine start switches FLT → A/T disconnect → Relight attempt (windmill start) |

These steps are often marked Exclusive because the crew must verify that the loads have actually shed. The EICAS message might indicate a bus is unpowered, but the Exclusive step requires the pilot to confirm that related systems (like hydraulic pumps or avionics fans) have actually ceased function or that the voltmeters read zero. It prevents a scenario where a switch is flipped, but the fault remains connected due to a welded relay. b777 qrh exclusive

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: Below 80 knots, pilots will reject a takeoff for almost any system anomaly. The QRH Secret : Above 80 knots but before V1cap V sub 1 🌬️ 2

Because stopping is so violent and carries immense fire risk, the QRH dictates that pilots should only reject the takeoff for master warning fire alarms, engine failures, or if the aircraft is fundamentally unsafe to fly. 🌬️ 2. The Pop-Up Wind Turbine (RAT Deployment)

To keep the plane on course, the QRH forces the crew to revert to an alternate navigation page on the Control Display Unit (CDU). This mode allows them to navigate solely by manually tuning classic radio navaids (VORs) and basic dead reckoning until they can get the aircraft safely on the ground.

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