42 were lost due to:
18 engine failure; A3-4, 14, 18, 28, 36, 46, 52, 67, 70, 74, 75, 79, 82, 94, 95, 97 and 98 (this includes A3-63 which suffered an on ground engine fire)
11 loss of control and impact with terrain or sea; A3-1, 32, 37, 40, 43, 50, 61, 77, 85, 89 and 109
6 undercarriage failure; A3-47, 58, 76, 80, 105 and 114
3 landing accident; A3-16, 26 and 64
3 lost after being involved in collision with another aircraft; A3-29, 30 and 69
1 tyre failure on take-off and subsequent transport fire A3-8

10 were scrapped or converted to components.
Of these 5 were scrapped; A3-66, 90, 106, 107 and 116. Another 5 incomplete aircraft were exported to Pakistan; A3-7, 48, 57, 78 and 91

14 were retained as museum or display aircraft; A3-3, 20, 41, 42, 44, 45, 51, 55, 59, 72, 92, 100, 102 and 115
Plus 2 aircraft that are included above as losses were later restored to static display standard; A3-16 and 36.

42 losses as a percentage of the total fleet of 116
18 engine failure 15.5%
11 loss of control and impact 9.48%
6 undercarriage malfunction 5.17%
3 landing accident 2.58%
3 collision with another aircraft 2.58%
1 tyre failure 0.86%
42 lost equals 36.2% of fleet

Individual causes as a percentage of the 42 aircraft lost
18 engine failure 42.85%
11 loss of control and impact 26.19%
6 undercarriage malfunction 14.3%
3 landing accident 7.14%
3 collision with another aircraft 7.14%
1 tyre failure 2.38%
42 equals 100% of losses