formally entered service with the Indian Air Force (IAF), after one of the most protracted procurements in India's history, two decades having elapsed between the initial interest and the contract signing on 26 March 2004. The IAF received 24 aircraft directly from BAE Systems with deliveries beginning in November 2007, and further 42 Hawks assembled by Hindustan Aeronautics Limited between 2008 and 2011. In February 2008, India planned to order 57 more Hawks, with 40 going to the Indian Air Force and the remaining 17 to the Indian Navy. In July 2010, it was announced that the IAF and the Navy would receive the additional 57 aircraft. The additional aircraft will be all built in India by Hindustan Aeronautics (HAL), continuing to work under licence from BAE. On 10 February 2011, Hindustan Aeronautics Limited and GE Aviation signed a contract under which GE Aviation will conduct the next 30 years of maintenance on the Hawk fleet. In 2011, the IAF was reportedly unhappy with the provision of spare components; In December 2011, BAE received a contract to provide India with spares and ground support. The first IAF Hawk AJT crashed on 29 April 2008 at 406 Air Force Station Bidar, Karnataka. On 3 June 2015, another Hawk AJT aircraft crashed near Baharagora, close to the West Bengal – Odisha border. The Hawk fleet is based at IAF's Bidar Air Force Station in north Karnataka, about 700 km from Bangalore. As of 2015, a total of 123 aircraft were on order by the Indian Air Force and 17 by the Indian Navy. An additional order of 20 aircraft is under negotiation. Indonesia In April 1978, Indonesia, seeking to increase its aerial capabilities, placed the first of multiple orders for the Hawk. The Indonesian Air Force received more than 40 Hawks in the 1980s and 1990s; In June 1991, BAe and Indonesian Aerospace (IPTN) signed a major agreement for collaborative production of the Hawk, and more orders of the Hawk were anticipated. Further Hawk exports were eventually blocked due to concerns over Indonesian human rights, particularly in East Timor. During the 1990s protests erupted across England over arming Indonesia and pressure increased after the mass-murder of the Balibo Five journalists and Roger East came to light and allegations of the use of Hawks during the Indonesian occupation of East Timor. The Hawks have been the backbone of Indonesian Air Force, supplementing more