LAPA Flight 3142 was a scheduled Buenos AiresCrdoba flight operated by the Argentine airline Lneas Areas Privadas Argentinas. The flight was operated with a Boeing 737-204C, registration LV-WRZ, that crashed on 31 August 1999 at 20:54 local time while attempting to take off from Aeroparque Jorge Newbery and failing to get airborne. The crash resulted in 65 fatalities63 of the occupants of the aircraft and 2 on the groundas well as injuries, some serious, to at least a further 34 people.

Líneas Aéreas Privadas Argentinas (English: Private Argentine Air Lines), more commonly known by the acronym LAPA (and known as ARG Argentina Línea Privada and AIRG from 2001 to 2002), was an airline based in Buenos Aires, Argentina. At its heyday, the carrier operated international services to the United States and Uruguay, as well as an extensive domestic network within Argentina. Additionally, the company also operated charter services. Domestic and regional flights were operated from downtown's Aeroparque Jorge Newbery, whereas an international service to Atlanta was operated from Ministro Pistarini International Airport. LAPA was the first carrier to break a monopolistic market controlled by Aerolíneas Argentinas and its sister company Austral Líneas Aéreas, offering competitive prices.

It ceased operations in April 2003.