ABDFHJLNPRTZ
1
#SystemHazard DescriptionRisk before Mitigation MeasuresRisk Elimination or
Mitigation Measures		Risk After Mitigation MeasuresVerification Data to Submit to AST
2
Severity Likelihood Risk Hazard Index Severity Likelihood Risk Hazard Index
3
EXAMPLEFlight Safety SystemFailure of TTS to respond to manual trigger effortI

Catastrophic 		C

Occasional		41. “Dead Man” switch activates TTS when released (open circuit)
2. Activation sound and light warnings prompt backup actions if absent
3. Backup ABORT input
4. Telemetry ABORT verification
5. Backup ABORT using transmitter power off		I

Catastrophic 		E

Extremely Unlikely		121. Test 001 showing the switch activates when open circuit
2. Test 002 showing sound and lights warning activate
3. Test 003 showing automated ABORT issued in case of loss of manual trigger
4. Test 004 showing automated ABORT issued in case of loss of telemetry
5. Test 005 showing automated ABORT issued when loss of power
4
1
5
2
6
3
7
4
8
5
9
6
10
7
11
8
12
9
13
10
14
11
15
12
16
13
17
14
18
15
19
16
20
17
21
18
22
19
23
20
24
21
25
22
26
23
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100