The 787 has two hydraulic systems (Left and Right) plus a backup electro-hydrostatic actuator. The 2021 PDF introduced a “RAM Air Turbine (RAT) Deployment” logic that overrides the earlier automatic deployment. Now, the checklist explicitly states: “If both hydraulic pressures are low AND flaps are required, RAT DEPLOY – MANUAL.” This prevented premature RAT deployment that previously damaged the fuselage doors in two 2020 test flights.
Whether you are preparing for a type rating, auditing your flight simulator’s accuracy, or managing a fleet’s technical library, understanding how the 2021 QRH worked is essential. It set the standard for all revisions that followed—including the 2024 update that integrated RNAV approach failures.
If you were accessing a legitimate 2021 Boeing 787 QRH PDF (via an airline’s secure portal or Boeing’s MyBoeingFleet), you would notice these key sections and updates:
: New sections and "Fact Cards" were introduced in May 2021 covering Tail Strike Protection and Stabilizer Operation .
The 787 has two hydraulic systems (Left and Right) plus a backup electro-hydrostatic actuator. The 2021 PDF introduced a “RAM Air Turbine (RAT) Deployment” logic that overrides the earlier automatic deployment. Now, the checklist explicitly states: “If both hydraulic pressures are low AND flaps are required, RAT DEPLOY – MANUAL.” This prevented premature RAT deployment that previously damaged the fuselage doors in two 2020 test flights.
Whether you are preparing for a type rating, auditing your flight simulator’s accuracy, or managing a fleet’s technical library, understanding how the 2021 QRH worked is essential. It set the standard for all revisions that followed—including the 2024 update that integrated RNAV approach failures. boeing 787 qrh pdf work 2021
If you were accessing a legitimate 2021 Boeing 787 QRH PDF (via an airline’s secure portal or Boeing’s MyBoeingFleet), you would notice these key sections and updates: The 787 has two hydraulic systems (Left and
: New sections and "Fact Cards" were introduced in May 2021 covering Tail Strike Protection and Stabilizer Operation . Whether you are preparing for a type rating,
