TRAX MANUALS > Engineering > Engineering Module - E/C > Engineering E/C, Update Menu > Engineering Fatigue

Engineering Fatigue

The E/C Fatigue option is designed to report and update on Engineering Controls that contain Task Cards that are affected by a Fatigue rating specified by the aircraft manufacturer (i.e., Airbus). Refer to the Aircraft Type/Series and the Engineering Control sections below for information on the required parameters that drive fatigue calculations.

The E/C Fatigue window appears as follows. Enter the A/C Type/Series, make any necessary selections, then select the Find button.

The following information/options are available in this window:
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A/C Type/Series

The Aircraft Type and Series/Fleet assignment. This Type/Series will have its fatigue ratings calculated.

Update Main E/C checkbox

Will put the re-calculated parameter into the Main E/C Schedule (not just in the Aircraft Effectivity).

Reset First Schedule checkbox

Select to Reset the First Schedule on the Aircraft Effectivity to the re-calculated parameter.

Reset Repeat Schedule checkbox

Select to reset the Repeat Schedule to the re-calculated parameter.

Fatigue Cycles Recalculation

This option produces a report of the suggested cycle interval for the applicable Engineering Controls.

Fatigue Cycles Recalculation Update

This option updates the re-calculated parameters back into the applicable Engineering Controls.

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Fatigue Parameters

Average Flight Time and Basic Flight Time

The A/C Type/Series, General tab contains AFT (Average Flight Time) and BFT (Basic Flight Time) parameters.

The following information/options are available in this window:
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AFT and BFT

The optional AFT and BFT parameters relate to the Fatigue program for certain Airbus (only) models. AFT is Average Fight Time; BFT is Basic Flight time (these parameters are supplied by Airbus for that type/series). The Engineering Controls within the system have the capability to record the FC (Flight Cycles) and FR (Fatigue Rate) parameters which can then be recalculated according to the supplied formula:
“Schedule Cycles = FC x ( 1 - ( AFT - BFT ) x FR )”
The system can then use the new calculated Cycles frequency for the forecasting of the required inspection date.

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Flight Cycles and Fatigue Rate

The Engineering Control, Other tab contains the FC (Flight Cycles) and FR (Fatigue Rate) parameters.

The following information/options are available in this window:
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FR (Fatigue Rate)

The Fatigue Rate being recorded by this E/C. This field is used to calculate fatigue schedules along with the Average Flight Time (AFT) and Basic Flight Time (AFB) parameters listed for specific Aircraft Type/Series. This functionality is used for Airbus aircraft only and should be provided by the manufacturer.

FC (Fatigue Cycles)

The Fatigue Cycles being recorded by this E/C. This field is used to calculate Fatigue schedules along with the Average Flight Time (AFT) and Basic Flight Time (AFB) parameters listed for specific Aircraft Type/Series. This functionality is used for Airbus aircraft only and should be provided by the manufacturer.

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When the print is generated, the results display, as follow: