In 1986, Peru ordered 20 Tucanos to replace the Cessna T-37 Tweet. Deliveries to the Peruvian Air Force commenced in April 1987 at the rate of two units per month; the last delivery took place in November 1987. In 1991, an additional 10 Tucanos were purchased for antidrug operations, reaching a total of 30 aircraft, although six of them were resold to Angola in 2002. The first EMB-312s took part in the Escuadrón de Instrucción básica No. 512 from the Air Academy as part of the Grupo de Entrenamiento 51 based at Las Palmas – Lima. Another squadron of EMB-312s was assigned to Escuadrón Aéreo Táctico No. 514. The first aircraft were painted in orange and white for trainers and gradually replaced by jungle camouflage, while a few were painted dark gray for night missions. Most of these aircraft were adorned with an aggressive shark's mouth. The aircraft cockpit was later modified to suit night-vision goggles and forward-looking infrared sensors for night operations. Since 1991, the FAP Tucanos were actively involved in ground attack operations over the Cenepa River on drug-busting operations, shooting down over 65 planes and performing attacks on several illicit ships. Between 1992 and 2001, the Air Bridge Denial Program provided intelligence for the Air Force in counter-drug operations; during the program, at least nine civilian aircraft were shot down by AT-27s. During the Cenepa War, loaded with four Mk.82 bombs and equipped with night-vision goggles, a fleet of Tucanos carried out a night bomber raid targeting Ecuadorian forces over the Cordillera del Cóndor at dawn on 5 February 1995. The aircraft were part of the 2002 Quiñones Plan, which was implemented in 2007 and aimed at putting unserviceable equipment back into service. In March 2012, the Peruvian Air Force was considering an option to modernize 20 EMB-312s in a program jointly conducted by the Brazilian Air Force and Embraer under a wide-ranging defence agreement signed with the Brazilian defence ministry. Venezuela On 14 July 1986, the Venezuelan Air Force received the first four Embraer EMB-312 Tucano AT/T-27s from an order of 30 aircraft that was worth US$50 million. A year later, the remaining aircraft were delivered, divided into two variants: 18 T-27s for training purposes and 12 AT-27s for tactical support. The Tucanos were assigned to Grupo 14 at the Escuadrón de Entrenamiento No. 142 "Escorpiones" based in Maracay, to the Grupo 13 at the Escuadrón