On June 4, 1969, Mexicana Flight 704, a Boeing 727, crashed near Salinas Victoria, some 20 miles north of the city of Monterrey. All 79 people on board were killed, including Mexican tennis star Rafael Osuna and politician Carlos A. Madrazo. The aircraft was a Boeing 727–64, with tail number XA-SEL, and was approaching Del Norte International Airport near Monterrey. It had made a continuous descent in the last 5 minutes before impact. The pilot turned left instead of right once the aircraft had passed over the Monterrey VOR, apparently not knowing his exact position at the time. The aircraft collided with Cerro del Fraile upon impact and broke up.^[2]

• http://en.wikipedia.org/wiki/Mexicana Flight 704