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ECUADOR HAS grounded its remaining three HAL Dhruvs and terminated its support contract with the manufacturer, following four crashes. The decision was announced by Ecuador’s Minister of Defence, Fernando Cordero Cueva, on October 14. Ecuador had ordered seven Dhruvs for the Fuerza Aérea Ecuatoriana (FAE – Ecuadorian Air Force) on August 5, 2008, six for utility/SAR/CSAR operations and one for the Presidential/ VVIP role.
Ecuador’s Junta Investigadora de Accidentes Militares (JIAM – Military Accident Investigation Board) determined that pilot error was to blame for the first two losses so there had been no reason to suspend operations at that time. However, the JIAM said that technical deficiencies possibly caused the two accidents in January this year. The JIAM cited a probable fault in the autopilot which led to FAE-603’s loss of flight control and impact with water in the Chongón on January 13. On January 27, FAE-605 crashed just after take-off from a military heliport at Tena. Failure of the fourth segment of the tail rotor power transmission shaft with the unexpected failure at low altitude preventing any attempt at an emergency landing, was established by the JIAM as the likely cause of the accident.
The first Dhruv lost, FAE-604 on October 27, 2009, crashed during a display in Quito. The second involved the only VVIP-configured FAE Dhruv, FAE-601 – it crashed near Huigra, killing three of the four on board on February 20, 2014. The defence minister claimed the technical failures were due to manufacturing faults. AFM contacted HAL for comment, but the company has not responded. He also accused HAL of failing to integrate some of the equipment that was specified in the contract. This included a traffic alert and collision avoidance system (TCAS), integration of various navigation systems (VOR, ILS and DME) with cockpit display screens, an enhanced ground proximity warning system (EGPWS) and emergency locator (search) signal (SAR homer) equipment.
Source: AFM - Dec 2015
Ecuador’s Junta Investigadora de Accidentes Militares (JIAM – Military Accident Investigation Board) determined that pilot error was to blame for the first two losses so there had been no reason to suspend operations at that time. However, the JIAM said that technical deficiencies possibly caused the two accidents in January this year. The JIAM cited a probable fault in the autopilot which led to FAE-603’s loss of flight control and impact with water in the Chongón on January 13. On January 27, FAE-605 crashed just after take-off from a military heliport at Tena. Failure of the fourth segment of the tail rotor power transmission shaft with the unexpected failure at low altitude preventing any attempt at an emergency landing, was established by the JIAM as the likely cause of the accident.
The first Dhruv lost, FAE-604 on October 27, 2009, crashed during a display in Quito. The second involved the only VVIP-configured FAE Dhruv, FAE-601 – it crashed near Huigra, killing three of the four on board on February 20, 2014. The defence minister claimed the technical failures were due to manufacturing faults. AFM contacted HAL for comment, but the company has not responded. He also accused HAL of failing to integrate some of the equipment that was specified in the contract. This included a traffic alert and collision avoidance system (TCAS), integration of various navigation systems (VOR, ILS and DME) with cockpit display screens, an enhanced ground proximity warning system (EGPWS) and emergency locator (search) signal (SAR homer) equipment.
Source: AFM - Dec 2015