How to use Automatic Recalculations for TTIS cumulative fields

Automatic Recalculations is an opt-in setting in Aircraft Maintenance Setup that keeps Cumulative Time fields on Flight Records in sync when flights are edited or entered out of order.

When this setting is enabled, AirMaestro recalculates linked Aircraft Counter values (as shown via the cumulative field) from the relevant “start point” forward, after an intentional 5-minute delay.

When to use Automatic Recalculations

Use this functionality if your organisation:

• updates flight durations after saving,

• corrects historical flight records,

• enters flights later (for example, a 5 am flight is entered after later flights from the same day),

When enabled, if a user edits a Flight Record (details or leg), AirMaestro will automatically recalculate the linked Cumulative Time field values forward from the appropriate point so subsequent records reflect the corrected TTIS progression.

After updating a Flight Record (details or leg), AirMaestro waits about five minutes and then runs the recalculation automatically. This delay is built in (users can’t change it), and it exists to allow quick corrections and to avoid triggering recalculations on every small edit.

The recalculation happens to the Cumulative Time custom field in Flight Records, not to the Aircraft Counter value displayed for the aircraft in the Aircraft Register. Updating a flight record triggers recalculation only for the specific aircraft and date involved, meaning that all flights for that aircraft from that day onward are recalculated, rather than historical flights across all aircraft.

How to enable Automatic Recalculations

1. Go to Site Setup > Aircraft Maintenance Setup
    

2. Scroll down to the Automatic Recalculations section.
    

3. Tick Enabled
   
   
    

4. (Optional) Select a Tiebreaker custom field.
   See the next section.
   
   
    

5. Click Save

Setting a Tiebreaker

(optional, but recommended for multiple flights per day)

If multiple flights share the same Flight Date, the system needs a way to decide which flight happened first (because date alone doesn’t provide time order).

What to select

Choose a custom field from either Flight Record Details or Flight Leg that contains a time value (or something that effectively determines order).

This value will be referenced by the system as a "start point" for the flights.

How it works

When multiple flights occur on the same date, AirMaestro uses the earliest tiebreaker value to determine where recalculation should start. It then recalculates forward so later flights on that day (and beyond) reflect the correct cumulative TTIS.

When you can leave it blank

If your operation typically has one flight per aircraft per day (or you don’t encounter same-date ordering issues), you can enable Automatic Recalculations without setting a tiebreaker.

If multiple flights fall on the same day and no tiebreaker exists, the system processes them in the order they were created.