General
The engine balancing/perform balance/new balance weights display shows the new fan and new LPT balance weights solutions. Use the display to change the FAN and LPT balance weights information.
The engine balancing/perform balance/new balance weights display shows this information:
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Configuration text fields
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Dialog text field
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FAN text entry field
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LPT text entry field
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Buttons.
When you select any data or blank text field in the fan text entry field or the LPT text entry field, the engine balancing/edit weight data dialog box shows.
The keep balance weights data is a list of up to 15 weight part numbers and weight location numbers for the fan, and 15 weight part numbers and weight location numbers for the LPT, that are on the engine now.
Buttons
Select KEEP WEIGHTS to show the engine balancing/exit approval dialog box.
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CMCS -ENGINE BALANCING/PERFORM BALANCE/NEW BALANCE WEIGHTS DISPLAY
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CMCS -ENGINE BALANCING/EXIT APPROVAL DIALOG BOX
General
The engine balancing/exit approval dialog box lets you approve the fan and LPT balance weights.
The engine balancing/exit approval dialog box shows:
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Dialog box title
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Text field
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Buttons.
Buttons
Select KEEP WEIGHTS to send the text entry field for the fan and LPT balance weights, from the keep balance weights displays, to the selected airborne vibration monitor signal conditioner unit. This also removes the engine balancing/exit approval dialog box. If the airborne vibration monitor signal conditioner unit sends an incorrect part and hole/blade numbers command to the CMCF, the CMCF shows the engine balancing/edit error dialog box.
Select HELP to show the help dialog box for the engine balancing/exit approval dialog box. Help text for the dialog box must be in the CMCF AMI for HELP to show.
Select GO BACK to remove the engine balancing/exit approval dialog box.
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CMCS -ENGINE BALANCING/CALCULATE COEFFICIENTS/N1 VIBRATION FLIGHT HISTORY DISPLAY
General
The engine balancing/calculate coefficients/N1 vibration flight history display shows N1 vibration data and phase angle data for six flight legs at different N1 percent values. The display also shows ground run N1 vibration data and phase angle data, at different N1 percent values, after a ground run procedure.
This display shows this information:
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Display title
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Configuration text fields
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Dialog text field
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Text box field
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Non-exclusive selections
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Buttons.
Nonexclusive Selections
There are six nonexclusive selections on the engine balancing/ calculate coefficients/N1 vibration flight history display.
The selection of some of the buttons causes the nonexclusive selections to go away from the display. These are the buttons that cause the nonexclusive selections to go away from the display:
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CALCULATE COEFFICIENTS
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GROUND RUN
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KEEP GROUND RUN DATA.
EFFECTIVITY
BEJ ALL
Data in the text box field highlights if the airborne vibration monitor signal conditioner unit finds that the data is out of range.
Engine ground run history is a record of vibration level and phase angle of the N1 shaft, at 6 specified engine speeds, measured by the engine accelerometers, during the ground run of an engine.
Buttons
Select CALCULATE COEFFICIENTS to send the selected flight histories to the airborne vibration monitor signal conditioner unit and let the airborne vibration monitor signal conditioner unit calculate the specific balance coefficients. You cannot select CALCULATE COEFFICIENTS until two flight legs selections are made. Select CALCULATE COEFFICIENTS to show the engine balancing/calculation condition dialog box.
Select GROUND RUN to show the engine balancing/calculate coefficients/existing balance weights display.
Select KEEP GROUND RUN DATA to update the flight histories in the selected airborne vibration monitor signal conditioner unit. The ground run data is moved to LEG O, LEG 0 data is moved to LEG-1, and so on for the other flight legs. You cannot select KEEP GROUND RUN DATA until the ground run data shows on the display.
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