GPS disruption

[Go4PoweredDecent]

It’s a daily way of life along the whole Eastern part of Turkey, especially near the Syrian Border.

[Fuel Crossfeed]

A frequent occurrence for the A380 around Turkey & Iraq border. Could sometimes get a locked out MMR, even though GPS primary comes back, there was no ECAM for the locked MMR. GPS would have to be reset by engineer on the ground if any GPS jamming occurred.

[TURIN]

Standard Tech Log entry on certain flights from the middle east overflying Iran, Iraq, Syria etc.
"GPS Interference ".
"BITE check satis" is the usual reply. 😁

[FlightDetent]

Originally Posted by wiggy

GPS spoofing at actually significantly changing an aircraft's flight path when

The previous operator had records to show the position drift was vulgar enough to trigger EGPWS warnings on approach or take the A/C outside its RNAV arrival protected area. Significant flight path alternation followed, not to mention the paperwork needed to sort it out.

Not exactly what you asked but painful beyond acceptable already. Especially the fake EGPWS have serious consequences, no need to mention.

[Max Angle]

Several crews at our outfit have had spurious EGPWS warnings low down during approach and departure from LCA. We are allowed to turn off the enhanced function below 1000ft under certain conditions for the approach but are supposed to leave it on for take-off. Unfortunately (certainly on the Airbus) it is not possible to deselect GPS from the EGPWS in the same way you can take it out of the FMGS position calculation which is what we do as we hit that airspace.

[hoistop]

Magplug

As I am boating every summer around Pula, I can confirm that this area has issues with GPS signal, and is not related only to Balkan war time. There are even warnings on some nautical guidebooks about it - and it still happens. I can only confirm that the area has large military installations and big radars are visible on the far tip of peninsula (in former Yugoslavia, nearby Brioni islands were Tito`s summer residence and the place is still used as Croatian government VIP area). Interesting, my mobile phone is not affected, when I pass by - probably becouse mobile phones are using triangulation too. The same goes for Airbuses etc. Dropout of GPS signal alone should not cause position shift, as position is calculated using different sources, adding different influence to final position calculation. See your FCOM.

[esa-aardvark]

Are other satellite navigation systems (Galileo etc) similarly affected ?

[Sallyann1234]

A crude jamming system would affect them all equally.
Spoofing multiple systems to the same false location would be much more difficult.