Built in 1970 for Aer Lingus as EI-ASH. Later leased to Transair (CF-TAR and C-GTAR), Frontier Airlines (N7361F), Air Florida (N80AF) and TAN Honduras (HR-TNS), subsequently leased to Southwest Airlines, Nigeria Airways, Aerolineas Argentinas, Bahamasair and Air Cal (all retaining EI-ASH). Sold to National Airlines in Chile as CC-CSL in October 1995 and to Avant following their merger in 1998. Avant ceased operations in 2001 and the aircraft joined LAN in 2003, withdrawn from service in 2006 and later scrapped.

National Airlines of Chile has operated only for a few years, before the airline was taken over by Avant. The airline had acquired some B737's from Britannia Airways, and they painted this B737 as well in a Britannia-style colour-scheme - although this aircraft came from Aer Lingus. The Boeing was retired at Santiago in 2006, after services with its final operator LAN Airlines.

Ex EI-ASH, registered 20th Oct 1995 to National Airlines, transferred to Avant Nov 1998 and to LAN Mar 2004