Incident Overview
On February 22, 2021, at 03:37 UTC, a Boeing 737-800 aircraft, registration LV-CXS, operated by Aerolíneas Argentinas S.A. as flight AR1842, experienced a failure of the flap indication and an apparent lockup of the flap system during the descent phase of a regular passenger flight from Aeropuerto Internacional Ezeiza to Aeropuerto Río Grande in Tierra del Fuego, Argentina.
Crew Actions
In response to the failure, the flight crew evaluated the possibility of diverting to Comodoro Rivadavia but decided against it due to insufficient fuel range. The crew continued the approach to Río Grande and performed a landing without incident.
Outcome
The aircraft sustained no damage, and no injuries were reported among the 6 crew members and 132 passengers on board.
Investigation
The Dirección Nacional de Investigación de Sucesos Aeronáuticos (JST) conducted a preliminary review of the occurrence. Given the nature of the event and the condition of the aircraft after landing, the authority determined that the incident did not represent any impact on operational safety and closed the investigation without further action.
Aircraft Details
- Registration: LV-CXS
- Model: Boeing 737-800
- Serial Number: Not specified in source
- Operator: Aerolíneas Argentinas S.A.
- Damage: None
Flight Details
- Departure: Aeropuerto Internacional Ezeiza (SAEZ)
- Destination: Aeropuerto Río Grande (SAWE)
- Flight Duration: 02:50
- Flight Number: AR1842
- MET Code: IMC (Instrument Meteorological Conditions code reported, though actual weather conditions not specified)
Conclusion
The incident involved a system/component failure (non-powerplant) as per the source classification. No probable cause was assigned by the investigation, as it was closed without a formal finding.