Flight next month rebooked for a "technical stop" after only 30 minutes of flying [closed]

This is just a guess, but this sort of thing sometimes happens when an airport has expensive fuel, or is not a good place for a crew layover.

Suppose an airline wants to fly between airports AAA and BBB, which are a fair distance apart (several hours flying). In the normal case, the plane will fly from AAA to BBB, refuel, and fly back to AAA. Since there are limits on how many hours the crew can be on duty, the same crew cannot fly the plane back to AAA, so they stay overnight in BBB, and are replaced by the crew who flew AAA-BBB the previous day and spent the night.

However, it could happen that due to economic issues or supply disruptions, fuel at BBB is very expensive or in short supply. The airline could add a tech stop at CCC on the way back. When departing AAA, the plane takes on enough fuel to do AAA-BBB-CCC, so as not to have to buy fuel at BBB. (This is sometimes called "tankering".) Then at CCC, which should be someplace where fuel is cheaper, the plane refuels to be able to fly CCC-AAA. The same logic could apply with any other necessary supplies or servicing in place of fuel.

Another possibility is that the airline feels that BBB is not an appropriate place for its crew to spend the night (e.g. high crime, civil unrest, no good hotels, etc). If CCC is close to BBB, the same crew can fly AAA-BBB-CCC. They spend the night in CCC and are replaced by the crew who flew AAA-BBB-CCC the previous day, who will now fly the plane back to AAA.

In both cases, this works best if CCC is pretty close to BBB, but far enough not to be affected by the same issues as BBB (in a different country, say).

Since you're going the opposite way, BBB-AAA, you see your itinerary changed to BBB-CCC-AAA. But if you're making a round trip and coming back on the same airline, you probably won't see a tech stop added to your AAA-BBB leg.