777 Secondary Engine Display
by jerome meriweather
   

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VIB Source VIB Source VIV High Band VIB High Band VIB Pointer VIB Pointer Engine VIB Engine VIB Oil Qty Oil Qyt Oil Temp Limit Oil Temp Limit Oil Temp Pointer Oil Temp Pointer Oil Temp Caution Oil Temp Caution Oil Temp Caution Oil Temp Caution Duct PSI Oil Pressure Limit Oil Pressure Limit N2 RPM Indicator N2 RPM Indicator X-BLD Oil Temperature Oil Temperature N2 Graphic RPM Indicator N2 Graphic RPM Indicator Right Engine Oil Pressure Left Engine Oil Pressure N2 RPM Operating Limit N2 RPM Operating Limit Oil Pressure Pointer Oil Pressure Pointer Fuel Flow Indicator Fuel Flow Indicator
777 Photo and/or Graphic Element
  

The airplane is powered by two Pratt & Whitney PW4077 engines rated at 77,000 pounds of takeoff thrust each. The Secondary Engine screen displays N2, fuel flow, oil pressure, oil temerature, oil quantity and engine vibration. The Primary Engine Display can be switched to the Secondary Engine Display should there be a failure in the Primary Engine Display screen.

 

Fuel Flow ( FF )
Displays Fuel Flow to the engine in pounds per hour (x1000).
Oil Pressure Pointer
Display is white in normal operating range and red when operating limit is reached.
N2 RPM Operating Limit
Always displayed in Red.
Oil Pressure Indicator
Displays normal engine oil pressure ( psi ) in white and red when the operating limit is reached.
N2 Graphic RPM Indicator
Displays N2 Revolutions Per Minute ( RPM ). The digital display is white in normal %, or red when operating limit is reached.
Digital Oil Temperature Indicator
Displays Oil Temperature ( °C ), white in normal operating limit, amber when caution range is reached and red when the operating limit is reached.
X-BLD
Displays in magenta with the inflight start envelop indication if airspeed is too low for a windmilling start. Indicates a crossbleed start is required for inflight start.
N2 Digital RPM Indicator
Displays N2 Revolutions Per Minute ( RPM ). The digital display is white in normal range or red when operating limit is reached.
Pressure Operating Limit
Always displayed in Red.
Duct Pressure
Displays pressure (psi) in the left and right pneumatic ducts if respective fire switch is ON and either of the following conditions exist:
Oil Temperature Caution Range
Range is identified by amber bands.
Oil Temperature Pointer
Displays Oil Temperature in white for normal operating range, amber when caution range is reached and red when operating limit is reached.
Oil Temp Limit
Oil Temperature Limit
Digital Oil Quantity Indicator
Displays quarts of usable oil in:
L / R Engine Vibration Indicator
Displays how much vibration the Engines are producing.
L / R Engine Vibration Pointer
Indicates how much vibration the Engines are producing.
L / R Engine Vibration High Band
Vibration level at which automatic display of secondary engine indications occurs.
L / R Engine Vibration Source
Identifies highest source of vibration.