When you land a 777 overweight (because you cannot dump fuel fast enough for a medical emergency), the QRH provides an automatic 15% penalty. But the exclusive table adds:
The Boeing 777 Quick Reference Handbook is a condensed version of the comprehensive Boeing 777 Operations Manual. While the Operations Manual contains detailed system descriptions, operating limitations, and exhaustive technical data, the QRH distills this information down to the most time-critical and frequently referenced content. Its primary purpose is to provide flight crews with essential information and procedures for operating the aircraft in both normal and non-normal situations. b777 qrh exclusive
Consider an on a B777-300ER:
When you dispatch with a landing gear door not closed (a rare MEL item), the QRH gives a fuel burn penalty. The exclusive understanding: The B777's Flight Management Computer (FMC) cannot accurately predict drag from asymmetrical doors. You must manually add a 3% fuel flow bias per hour. Look for the small print in Section 4—most miss it, resulting in a 1,500 lb fuel error on a Pacific crossing. When you land a 777 overweight (because you
Electrical failures can be chaotic. A short circuit on one bus can cascade to others if isolation logic fails. In the event of a Major Electrical Failure or smoke in the electrical system, the QRH directs the crew to isolate specific busses. Its primary purpose is to provide flight crews
The B777 fuel system is highly automated, but a fuel leak requires precise QRH discipline.
Dealing with conflicting pitot-static data. C. Performance Data & In-Flight Landing Distances