Flight Deck Operations. Indian Navy In 1977, the Indian government approved plans to acquire the Sea Harrier for the Indian Navy. In November 1979, India placed its first order for six Sea Harrier FRS Mk 51 fighters and two T Mk 60 Trainers; the first three Sea Harriers arrived at Dabolim Airport on 16 December 1983, and were inducted the same year. Ten more Sea Harriers were purchased in November 1985; eventually a total of 30 Harriers were procured, 25 for operational use and the remainder as dual-seat trainer aircraft. Until the 1990s, significant portions of pilot training was carried out in Britain due to limited aircraft availability. The introduction of the Sea Harrier allowed for the retirement of India's previous carrier fighter aircraft, the Hawker Sea Hawk, as well as for the Navy's aircraft carrier, , to be extensively modernised between 1987 and 1989. India has operated Sea Harriers from both the aircraft carriers INS Vikrant and INS Viraat. The Sea Harrier allowed several modern missiles to be introduced into naval operations, such as the Sea Eagle anti-ship missile, and the Matra Magic air-to-air missile. Other ordnance has included 68 mm rockets, runway-denial bombs, cluster bombs, and podded 30 mm cannons. There have been a significant number of accidents involving the Sea Harrier; this accident rate has caused approximately half the fleet to be lost with only 11 fighters remaining in service. Following a crash in August 2009, all Sea Harriers were temporarily grounded for inspection. Since the beginning of operational service in the Indian Navy, seven pilots have died in 17 crashes involving the Sea Harrier, usually during routine sorties. In 2006, the Indian Navy expressed interest in acquiring up to eight of the Royal Navy's recently retired Sea Harrier FA2s in order to maintain their operational Sea Harrier fleet. Neither the Sea Harrier FA2's Blue Vixen radar, the radar warning receiver or AMRAAM capability would have been included; certain US software would also be uninstalled prior to shipment. By October 2006, reports emerged that the deal had not materialised due to the cost of airframe refurbishment. In 2006, the Indian Navy started upgrading up to 15 Sea Harriers, installing the Elta EL/M-2032 radar and the Rafael 'Derby' medium-range air-to-air BVR missile. This enabled the Sea Harrier to remain in Indian service beyond 2012. By 2009, crashes had reduced India's fleet to 12 (from original 30). India purchased