Boeing 737s Have Been Grounded

Aerolíneas Argentinas Boeing 737 aircraft have been grounded as a temporary precaution following an engine failure.

A total of eight 737-800 models have been parked in a move that the airline is taking as a precaution while it investigates the matter.

The incident involving AR1526 saw an engine fail just minutes after the 737 departed from Aeroparque Internacional Jorge Newbery. Following the incident, the crew initiated routine protocol for such incidents, where the aircraft diverted to Ezeiza Airport and performed a safe landing.

The aircraft that have been parked are equipped with CFM International CFM56 engines. The aircraft involved in the engine incident is LV-SFK, MSN 41562, and the incident occurred on October 15, 2025.

Now that the incident has occurred, a neccesary review will take place, which has already commenced in an effort to determine the cause of the incident and with the results helping to determine the direction moving forward in terms of the return to service for these aircraft.

Aerolíneas Argentinas does not expect the process to be lengthy for these 737 jets to return to service, reaffirming its stance that the grounding is a temporary measure to ensure the aircraft are fit to fly and that this incident was isolated, not widespread, and did not affect other aircraft in its business.

Additionally, even with the parking spaces that have been taken up, for the duration they remain on the ground, Aerolíneas Argentinas does not expect a significant impact on its operations and believes that it’ll be able to sustain operations due to the lower demand levels seen during this period.

Notably, following this incident, the carrier’s maintenance team stated that CFM International recommends an inspection of the said CFM56 engines after 17,200 flight cycles; however, none of the affected engines are close to this flight cycle limit.

As a result, Aerolíneas Argentinas is taking the neccesary precautions in order to safely return the jets to service and understand what has taken place on the aircraft.

The Aerolíneas Argentinas 737 Fleet

Aerolíneas Argentinas has 81 aircraft, primarily comprising the 737 series. This includes a commitment to three separate variants, which signify the airline’s last two decades of operations and what the future looks like, too.

Firstly, Aerolíneas Argentinas flies just four of the 737-700s; which average an age of 17.9 years and previously had a far bigger role in the airline’s fleet before being replaced by newer jets.

However, it’s the 737-800 that is the focus following this incident, the airline having 30 units to its name, with eight units temporarily parked, leaving the airline with 22 active units of this aircraft type.

Aerolíneas Argentinas’ 737-800 fleet averages 5.7 years in age. The latest commitment to the 737 model is the 737 MAX, specifically the -8 variant, where 13 aircraft have been delivered, and the latest data show that 11 units are currently active.