Andes 737 returns to Buenos Aires due unreliable airspeed indication

An Andes Boeing 737 lines up on the runway.
Rafael Luiz Canossa, CC BY-SA 2.0, via Wikimedia Commons

An Andes Líneas Aéreas flight operating from Buenos Aires to Iguazu, Argentina on Wednesday 21 February discontinued the flight shortly after takeoff and returned to Buenos Aires after the crew reported erroneous airspeed indications.

Andes Líneas Aéreas flight FO5106, a Boeing 737-800 was operating a regional service from Buenos Aires Ezeiza Airport (EZE) to Iguazu in the Argentinian province of Misiones. It was on climb after departure when flight crew declared an emergency and reported unreliable airspeed indications.

Andes FO5106 Buenos Aires-Iguazu

The flight was still in the early stages of departure and terminated the climb at 9000 feet. It then entered a holding procedure prior to negotiating a precautionary return to Ezeiza.

Flight data for the service shows that Andes flight FO5106 made a departure out of Ezeiza at 2012 local time on February 21. It subsequently terminated its climb at 9000 feet approximately 15 minutes after takeoff.

Holding and Return EZE

After a brief period of holding to the south east of Buenos Aires, the flight subsequently commenced to return to the departure airport.


It is understood that the Argentinian aviation regulator has opened an investigation into the incident. According to a report by the Aviation Herald, the aborted flight was the first scheduled service flown by the aircraft for some time. It last landed at Buenos Aires Ezeiza on January 7, 2024.

The aircraft operating the FO5106 regional service to Iguazu was a Boeing 737-800 registered LV-HKS; an 18-year old narrowbody aircraft belonging to the carrier Andes Lineas Aereas.

About Andes Lineas Aereas

Andes Líneas Aéreas is an Argentine airline based in Salta. It was founded in 2005 and began operations in 2006. 

The airline initially offered scheduled services between Salta and Buenos Aires. It has since expanded its network to include other regional destinations in Argentina, Brazil, and Uruguay. 

In 2019, the airline temporarily suspended all of its operations, before resuming flight services in 2020.

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By Len Varley - Assistant Editor 2 Min Read
2 Min Read
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