Principal Risk Areas/Measures of Effectiveness
How is the plan derived?
What are the parameters for baseline and custom-developed
Vibration - 6 gRMS excitation level - 20 to 2,000 Hz - 3 axes, 10 minutes
per axis - Powered, monitored
Thermal - -40?C to +70?C - 10?C per minute minimum
rate of change - 12 to 20 cycles - Powered, monitored
What is the hardware screening program?
Are defects detected?
- Re-evaluate profile parameters and/or
After repair during first vibration screen, complete the greater of the duration of the screen or 5 minutes.
After repair during any subsequent vibration screen, repeat the screen at -3db (70% gRMS) for 50% duration.
Do not exceed 5 vibration exposures.
After repair during first thermal screen, complete the greater of the screen or 3 cycles.
After repair during any subsequent thermal screen, repeat the screen.
Program Data Sources
Defect corrective actions
Temperature cycle profiles
Tri-Service Environmental Stress Screening (ESS) technical brief
Contract requirements (prime and sub)
Published by: OASN (RD&A) Product Integrity Directorate