Non- operational
|
Item Description
|
Operational
|
|||||||
---|---|---|---|---|---|---|---|---|---|
Base Failure Rate λb failures 106 hrs
|
Base Failure Rate λb failures 106 hrs
|
Environmental Factors ( KE )
|
Predominant Failure Modes
|
||||||
GFP
|
G.1
|
G.2
|
S.1
|
S.2
|
A.1
|
A.2
|
Mode
|
% Factor
|
|
Ground Fixed Protected
|
Ground Fixed
|
Ground Mobile
|
Ship Protected
|
Ship Exposed
|
Air Protected
|
Air Exposed
|
|||
0.53
|
Accumulator, Hydraulic
|
35.0
|
1.5
|
1.3
|
1.5
|
2.0
|
4.5
|
||
0.29
|
Actuator, Hydraulic
|
15.0
|
3.5
|
3.3
|
3.5
|
6.0
|
8.0
|
||
0.06
|
Actuator, Pneumatic
|
15.0
|
5.5
|
2.5
|
7.5
|
5.0
|
8.0
|
||
1.2
|
Barometric Capsule
|
1.2
|
N/A
|
N/A
|
N/A
|
2.0
|
4.0
|
Distortion
|
50
|
Porosity
|
50
|
||||||||
0.1
|
Bearing, Ball, Light Duty
|
2.3
|
3.0
|
2.0
|
3.0
|
2.0
|
4.0
|
Lubrication Failure
|
45
|
Contamination
|
25
|
||||||||
0.04
|
Bearing, Ball, Heavy Duty
|
4.5
|
2.2
|
1.2
|
2.2
|
1.5
|
3.2
|
Lubrication Failure
|
45
|
Contamination
|
25
|
||||||||
0.002
|
Bearing, Jewel
|
0.4
|
3.0
|
1.3
|
3.0
|
2.0
|
4.0
|
Contamination
|
60
|
Distortion
|
20
|
||||||||
Lubrication
|
12
|
||||||||
0.005
|
Bearing, Rotary, Roller
|
1.2
|
3.0
|
2.5
|
3.0
|
2.2
|
3.5
|
||
0.005
|
Bearing, Rotary, Sleeve
|
3.0
|
7.0
|
3.0
|
7.0
|
8.0
|
10.0
|
||
0.0005
|
Bearing, Spherical
|
1.0
|
5.0
|
3.0
|
5.0
|
6.4
|
l0.0
|
||
0.0002
|
Bearing, Translatory, Sleeve
|
0.2
|
6.0
|
2.3
|
6.0
|
5.0
|
l0.0
|
||
0.0005
|
Bearing, Bush
|
0.4
|
6.0
|
2.3
|
6.0
|
5.0
|
10.0
|
||
1.0
|
Bellows
|
9.5
|
5.0
|
4.0
|
5.0
|
10.0
|
12.0
|
||
0.0002
|
Bracket, Mounting
|
0.1
|
4.0
|
1.5
|
4.0
|
2.0
|
6.0
|
||
0.01
|
Brake Assembly, Mechanical, Friction
|
1.5
|
3.0
|
1.3
|
3.0
|
2.0
|
3.0
|
||
0.0001
|
Cam and Follower
|
1.8
|
5.0
|
1.2
|
5.0
|
1.5
|
6.0
|
Lubrication Faults
|
33
|
Adhesive Bond
|
27
|
||||||||
Failure Distortion
|
33
|
||||||||
Carburetor
|
|||||||||
0.0005
|
Clutch, Dog
|
0.5
|
3.0
|
2.7
|
3.0
|
6.0
|
9.0
|
||
0.05
|
Clutch, Friction
|
3.5
|
6.2
|
2.6
|
6.0
|
4.0
|
8.0
|
Contamination Lubrication
|
20
|
Failure
|
15
|
||||||||
Mechanical Degradation
|
50
|
||||||||
0.005
|
Clutch, Magnetic
|
5.0
|
3.0
|
2.0
|
3.0
|
4.0
|
5.0
|
||
0.05
|
Clutch, Slip
|
2.4
|
6.0
|
2.0
|
6.0
|
4.0
|
7.0
|
||
0.0001
|
Connections, Hydraulic
|
0.35
|
2.5
|
1.5
|
3.0
|
3.5
|
4.3
|
||
0.0001
|
Connections, Pneumatic
|
0.4
|
2.5
|
1.5
|
3.0
|
3.5
|
5.0
|
||
0.05
|
Counter, Mechanical
|
2.0
|
5.0
|
2.0
|
5.0
|
4.0
|
5.0
|
Lubrication Failure
|
58
|
Contamination
|
21
|
||||||||
0.004
|
Coupling, Flexible Drive
|
1.25
|
5.0
|
4.0
|
5.0
|
10.0
|
13.0
|
||
0.002
|
Coupling,
Rotary Shaft
|
0.2
|
2.0
|
1.3
|
2.0
|
2.0
|
3.0
|
||
Diaphragm, Metal
|
5.0
|
6.0
|
|||||||
Diaphragm, Rubber
|
8.0
|
||||||||
Drive, Belt
|
34.0
|
5.3
|
|||||||
Drive, Cable
|
3.2
|
6.0
|
|||||||
Drive, Constant Speed
|
|||||||||
(Pneumatic)
|
20.0
|
7.0
|
|||||||
Drive, Pulley
|
1.3
|
6.0
|
|||||||
Duct
|
2.0
|
12.0
|
|||||||
0.0001
|
Filter, Fuel
|
3.0
|
11.0
|
||||||
0.0001
|
Filter, Hydraulic Fluid
|
3.25
|
8.0
|
||||||
0.001
|
Filter, Pneumatic
|
1.5
|
6.5
|
||||||
0.01
|
Gasket, Cork
|
0.5
|
6.5
|
||||||
0.01
|
Gasket, Paper
|
1.0
|
6.8
|
||||||
0.01
|
Gasket, Monel Mesh
|
0.4
|
6.25
|
||||||
0.01
|
Gasket, 0 Ring
|
0.16
|
2.0
|
1.5
|
2.0
|
2.5
|
6.25
|
Deterioration
|
90
|
0.01
|
Gasket, Phenolic
|
0.4
|
6.25
|
||||||
0.01
|
Gasket, Rubber
|
0.16
|
6.25
|
Deterioration
|
65
|
||||
0.05
|
Gauge Pressure (Bourden Tube)
|
9.5
|
2.0
|
1.5
|
2.0
|
2.0
|
2. 4
|
||
Mesh
|
0.03
|
4.0
|
2.7
|
4.0
|
6.0
|
Contamination
|
21
|
||
Mechanical Failure
|
21
|
||||||||
Misalignment
|
29
|
||||||||
Lubrication Inadequate
|
29
|
||||||||
Gear Train, Anti-Backlash, per Mesh
|
1.0
|
3.0
|
2.0
|
3.0
|
4.0
|
||||
Gear Box
|
12.0
|
2.5
|
|||||||
Heat Exchanger
|
0.9
|
4.0
|
1.8
|
2.0
|
1.2
|
3.5
|
|||
0.001
|
Hose, Heavy Stress
|
25.0
|
4.0
|
Deterioration
|
85
|
||||
End Fitting Failure
|
10
|
||||||||
0.005
|
Hose, Flexible
|
1.5
|
2.2
|
Deterioration
|
85
|
||||
End Fitting Failure
|
10
|
||||||||
0.005
|
Hose, Pneumatic
|
10.0
|
15.0
|
Deterioration
|
85
|
||||
End Fitting Failure
|
10
|
||||||||
Hose, Coolant (I.C. Engine)
|
22.0
|
N/A
|
N/A
|
Deterioration
|
85
|
||||
Insert, Wire, Screwthread
|
0.1
|
||||||||
0.01
|
Jack, Hydraulic
|
||||||||
0.18
|
Motor, Hydraulic Mount,
Anti-Vibration
|
5.0
|
8.0
|
2.7
|
8.0
|
10.0
|
|||
0.0001
|
Mirror
|
0.1
|
3.0
|
2.0
|
3.0
|
4.0
|
|||
Plugs, Spark,
I.C. Engine
|
|||||||||
0.18
|
Pump, Engine Driven, Hydraulic
|
8.0
|
5.0
|
2.0
|
5.0
|
4.0
|
10.0
|
||
0.06
|
Pump, Fuel, Engine Driven
|
12.0
|
2.0
|
1.5
|
2.0
|
2.5
|
3.0
|
||
Pump, Vacuum, Engine Driven
|
9.0
|
2.0
|
1.5
|
2.0
|
5.0
|
6.0
|
|||
0.002
|
Piston, Hydraulic
|
1.3
|
5.0
|
2.0
|
5.0
|
4.0
|
6.0
|
||
0.0004
|
Prism
|
0.4
|
3.90
|
2.0
|
3.0
|
4.0
|
|||
0.003
|
Radome
|
8.0
|
2.0
|
N/A
|
2.0
|
N/A
|
3.0
|
||
0.01
|
Reducer, Pneumatic Pressure
|
0.3
|
2.0
|
1.5
|
2.0
|
2.5
|
3.0
|
||
0.01
|
Regulator, Hydraulic Pressure
|
2.3
|
3.0
|
2.0
|
3.0
|
4.0
|
5.0
|
||
0.01
|
Reservoir, Hydraulic
|
2.4
|
3.0
|
2.0
|
3.0
|
4.0
|
5.0
|
||
Seal, Sliding
|
3.0
|
3.0
|
2.0
|
3.0
|
3.5
|
6.25
|
|||
0.01
|
Seal, 0 Ring
|
0.16
|
2.0
|
1.5
|
2.0
|
2.5
|
3.0
|
||
Seal, Rotating
|
7.0
|
3.0
|
2.0
|
3.0
|
3.5
|
5.0
|
|||
Strip, Bonded
|
0.09
|
2.0
|
1.5
|
2.0
|
2.5
|
3.0
|
|||
Shaft, Gear, Extension
|
0.35
|
2.0
|
1.5
|
2.0
|
2.5
|
3.0
|
|||
Spring, Calibration, Sensitive
|
2.0
|
4.0
|
2.3
|
4.0
|
5.0
|
6.0
|
Distortion
|
30
|
|
Fracture
|
67
|
||||||||
Return Force
|
0.32
|
3. 0
|
1.5
|
3.0
|
2.5
|
3.0
|
Distortion
|
30
|
|
I.C. Engine
|
9.6
|
1.5
|
1.0
|
1.5
|
N/A
|
N/A
|
Distortion
|
30
|
|
Fracture
|
67
|
||||||||
Tank, Fuel, Integral (Wing)
|
13.0
|
N/A
|
N/A
|
N/A
|
N/A
|
10.0
|
|||
0.24
|
Tank, Small, SP
|
2.0
|
2.0
|
||||||
0.24
|
Tank, Small, LP
|
1.5
|
2.0
|
||||||
0.05
|
Timer, Mechanical
|
2.0
|
5.0
|
2.7
|
5.0
|
6.0
|
7.0
|
||
Valve, Air
|
1.7
|
3.0
|
4.0
|
5.0
|
4.0
|
6.0
|
|||
0.17
|
Valve, Butterfly
|
1.32
|
|||||||
Valve, Filler and Charging (Gas)
|
0.9
|
3.0
|
2.0
|
4.0
|
4.0
|
6.0
|
|||
Valve, Float, Fuel
|
15.0
|
2.0
|
1.5
|
2.0
|
3.0
|
4.0
|
|||
0.24
|
Valve, Fuel, Check
|
1.3
|
1.4
|
1.25
|
1.4
|
2.2
|
3.0
|
||
0.28
|
Valve, Hydraulic, Ball
|
0.6
|
2.3
|
||||||
0.002
|
Valve, Hydraulic, Check
|
2.0
|
6.0
|
||||||
0.005
|
Valve, Hydraulic, Control
|
||||||||
0.01
|
Valve, Hydraulic, Pressure Regulator
|
3.5
|
2.4
|
8.0
|
|||||
0.002
|
Valve, Hydraulic, Relief
|
10.0
|
3.0
|
||||||
Valve Hydraulic, Restrictor
|
2.0
|
10.0
|
|||||||
0.66
|
Valve, Hydraulic, Servo
|
48.0
|
3.3
|
||||||
Valve, Hydraulic, Shut-off
|
6.0
|
3.0
|
|||||||
Valve, Hydraulic, Shuttle
|
9.0
|
6.0
|
|||||||
Valve, Hydraulic, Spool
|
55.0
|
3.5
|
3.0
|
3.5
|
3.0
|
6.0
|
|||
Valve, Pneumatic, Bleed
|
|||||||||
0.22
|
Valve, Pneumatic, Check
|
1.2
|
6.0
|
||||||
0.02
|
Valve, Pneumatic, Control
|
0.6
|
3.0
|
1.8
|
3.0
|
7.0
|
9.0
|
||
Valve, Pneumatic, Pressure Regulator
|
2.0
|
10.0
|
58.0
|
||||||
0.001
|
Valve, Pneumatic, Relief
|
1.6
|
2.5
|
6.0
|
10.0
|
17.0
|
31.0
|
||
Valve, Pneumatic, Selector
|
|||||||||
Valve, Pneumatic, Shut-off
|
52.0
|
1.4
|
2.0
|
||||||
0.03
|
Valve, Solenoid, General
|
6.4
|
3.0
|
1.7
|
3.0
|
3.0
|
4.0
|