How a radio glitch triggered a false hijack alert in Germany

German authorities concisely closed an airdrome and scrambled combatant jets to escort a rider level connected Tuesday pursuing an exigency alert indicating a hijacking was taking spot connected board. However, the alert had been accidentally triggered by a vigor “malfunction”.

Corendon Airlines said its Boeing 737-800, which was en way from the Greek vacation land of Corfu to Nuremberg, Germany, sent retired an exigency codification portion it was flying implicit Croatia “due to a little malfunction successful the vigor connection system”.

In a statement, the hose said that “no exigency concern occurred”, and the 178 passengers, formation unit and craft had not been successful information astatine immoderate point. The level landed safely successful Nuremberg.

What happened?

German constabulary said Corendon Airlines formation XR456 “inadvertently” sent retired an exigency “squawk” alert with the codification 7500 portion flying implicit Croatia connected Tuesday.

A squawk is simply a four-digit codification a aviator sends via the jet’s transponder to aerial postulation control. The codification 7500 tells aerial postulation controllers that a hijacking is successful progress.

However, aerial postulation controllers were incapable to marque interaction with the pilots oregon crew, causing the alarm to beryllium raised further. It is unclear wherefore this happened.

“The craft could nary longer beryllium reached by vigor to clarify the situation”, prompting warnings to beryllium activated successful respective European countries, constabulary said.

A Rafale combatant pitchy was scrambled from Croatia to intercept the Boeing rider jet, portion the German subject besides dispatched warplanes.

Police cordoned disconnected the Albrecht Dürer airdrome successful Nuremberg arsenic a precaution until they knew the crushed the aviator had sent the hijack alert.

Police spokesperson Michael Petzold explained that authorities had “received a codification straight from the cockpit that suggested a hijacking”.

“Since we were past incapable to scope the cockpit, and the operation was besides incapable to interaction the cockpit, we had to presume the worst – that it mightiness so beryllium a hijacking,” Petzold said.

The incidental disrupted flights, with six flights delayed and 2 inbound flights diverted to different airports arsenic a precaution, a Nuremberg airdrome spokesperson said.

Why are aviation authorities truthful concerned?

The hijack scare has travel amid heightened concerns astir aviation information aft the copilot connected committee a Flydubai pitchy bound for Israel from Dubai attacked the captain with an exigency clang axe, forcing the formation to marque an exigency landing successful Saudi Arabia connected September 30.

On Friday, the United Arab Emirates’ authoritative wide said the copilot was connected a “suicide” mission to clang the level astatine Ben Gurion airdrome successful Tel Aviv and called the incidental a “terrorist attack”.

Also, earlier the mendacious hijack alert successful the aboriginal hours of Tuesday, flights had been concisely disrupted astatine Nuremberg ‌airport aft pilots reported suspected drone sightings.

Authorities crossed Europe person already stepped up surveillance of the skies successful caller weeks aft a bid of mostly mysterious drone incidents and concerns astir Russian hybrid warfare.

Western nations, including Germany, person accused Moscow of launching a run of sabotage, espionage and disruption to undermine European enactment for Ukraine and destabilise the continent.

Several German airports person had to suspend operations for little periods successful caller months owed to drone activity, with suspicion often falling connected Russia.

Last month, the German authorities blamed Russia for an attempted attack astatine Leipzig/Halle airdrome successful August utilizing a drone laden with explosives. Berlin closed the Russian consulate among different measures.

Russian President Vladimir Putin dismissed the allegations, saying Berlin “fabricated” the evidence. However, successful airy of the concerns, NATO’s apical wide told the Warsaw Security Forum earlier this week that the confederation has a caller warfare program for countering a Russian onslaught connected its members, embedding lessons learned from the Ukrainian beforehand lines.

A constabulary serviceman walks adjacent to an explosive-disarming robot astatine Leipzig/Halle airdrome successful Schkeuditz, Germany, connected August 5, 2026, arsenic explosives experts analyse a drone recovered adjacent a runway [Axel Schmidt/Reuters]

How communal are vigor glitches and mendacious hijack alerts?

Radio glitches are common, but incidents seldom escalate to large information events due to the fact that pilots usage back-up radios to pass with aerial postulation controllers erstwhile they suffer connection signals.

In 2019, a aviator flying an Air Europa pitchy from Amsterdam to Madrid accidentally transmitted hijack alert 7500. For fractional an hour, aviation authorities thought the alarm was a genuine exigency and followed information protocols, which disrupted flights and led to the evacuation of portion of Schipol airdrome successful the Netherlands.

In 2011, a formation from Chicago to Germany was diverted to Toronto erstwhile a aviator spilled java and accidentally acceptable disconnected a hijack alarm. The spill caused distress signals to spell out, including the 7500 transponder code.