Replacing an aircraft's tach meter or Hobbs meter

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Contents

Introduction

This tutorial shows you how to handle instances where an aircraft's tach meter or Hobbs meter is replaced.


Entering an adjustment record


How it works

ZuluLog assumes there is zero aircraft time between the final reading of the old meter, and the initial reading of the new meter. Therefore, the system will use the difference between the two as an "offset" when calculating the total time of components and maintenance schedules.


Example

Let's assume that:

Here's how the system calculates the time remaining until the engine's next 400-hour inspection:

 Hours_since_inspection = Previous_inspection_to_meter_reset + Meter_reset_to_current

or, in our example,

 Hours_since_inspection = (1300.0 - 1233.0) + (50.0 - 10.0)

or

 Hours_since_inspection = 67 + 40 = 107.

Therefore,

 Hours_remaining = 400 - 107 = 293

and

 Tach_reading_at_expiration = Current_reading + Hours_remaining = 50.0 + 293.0 = 343.0


Therefore, the engine's next 400-hour inspection will be due at a meter reading of 343.0, which is 293.0 hours from now. You can view the results of these calculations on the pop-up panel from Aircraft/Component Status, or from the Aircraft/Component Status PDF reports.

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