1. ISUAL Product Assurance
H. Heetderks

2. ISUAL Configuration Control
ISUAL will use the Atmospheric Emissions Group On-Line Drawing System Developed for the IMAGE FUV Project
Open Drawing Directory -- Anyone Working on the Project can Issue Themselves the next Drawing Number
System used for all ISUAL Drawings and Documents
Drawings may be in any of a prescribed list of formats (e.g. AutoCad R14) with the particular format identified in the Drawing Number
Engineers Work in an On-Line Directory which is Read Only to the Group
When an Engineer has a Drawing ready for Release he places it in a designated directory prior to CCB review
Following CCB Review, Drawings are moved to a Read-Only Controlled Drawings Directory. Previous Revs are Preserved but the last Rev is Always Definitive
Parts are Never made to Red-Lined Drawings or from an ECO
Shop, Fabrication, and Purchasing Personnel Instructed to use only Drawings taken from the Controlled Drawing File
An Image of the full Drawing Control System is maintained on our ftp Server at ftp://sprite.ssl.berkeley.edu/pub/img_dwgs
Additionally, a pdf version of the latest rev of all controlled drawings is available at (go to research, isual)
NCKU UCB Tohoku Product Assurance H. Heetderks
SDR 7 Jun 2000

3. ISUAL EEE Parts Program
EEE Parts De-rated per NASA PPL Guidelines
Including High Voltage Components and Connectors
Parts will be chosen from the following sources:
Previous Flight use at SSL
NASA PPL-22
US Mil or equivalent
US Mil-883/B
Extended Temp Range Commercial parts with SSL Lot Testing
Radiation Tolerance of 20K rads will be Verified
SSL Testing
Manufacture Data
NCKU UCB Tohoku Product Assurance H. Heetderks
SDR 7 Jun 2000

4. Materials and Process Control
Material Certs obtained with Virtually all Materials
Virtually all Materials and Fabrication Processes to be used have heritage on Previous NASA Programs at SSL
All work is done from drawings and/or written procedures
All Techs are NASA Trained in the appropriate specialty
Soldering
Harnessing
Polymerics
Parts made by outside vendors will be verified to meet print by extensive testing of fit and function
NCKU UCB Tohoku Product Assurance H. Heetderks
SDR 7 Jun 2000

5. ISUAL Quality Assurance
Document Control
Identification and Traceability
Parts with same P/N are identical
Identical (and sometimes similar) parts will be serialized
Procurement Controls
Control of Limited Life Items
Engineering Review of Purchase Orders
Receiving Inspection
Done by Cognizant Engineer
Fabrication Control
Documented in Fabrication Control Plan
Fabricated Components controlled by Manufacturing Certification Log (Traveler)
ESD Control per Space Physics Group ESD Plan
ESD Certified Work Stations
Grounded Operators and Tools
Special Procedures for CCD’s
NCKU UCB Tohoku Product Assurance H. Heetderks
SDR 7 Jun 2000

6. ISUAL Quality Assurance (continued)
Non-Conformance Control
Single Form for Failures and Discrepancies
Discrepancy Reporting will begin with Procurement of Material for Flight Assemblies
Failure Reporting will begin with Testing for Flight Components
MRB Action required for all Non-Conformance resolution
Inspections and Tests
Inspection and Test Records will be included in Manufacturing Cert Logs
Printed Wiring Boards will be Fabricated with Test Coupons
Metrology
Absolute Optical measurements will be made with NBS traceable Standards
Electrical measurements will be made with instruments cross-checked against calibrated standards
NCKU UCB Tohoku Product Assurance H. Heetderks
SDR 7 Jun 2000

7. ISUAL Reliability Assurance
The Largest Contribution to Design Reliability is made by making maximum use of designs which have been proven on past programs
Other Contributions to System Reliability
Use of mechanical as well as electrical de-rating and design margin (e.g. leostar 4.2.3)
Use of modular mechanical designs (I.e. components can be separated into easily repairable sub-assemblies)
Greatly simplifies testing by allowing use of the ETU system as a test bed
Greatly improves repairability
Careful thermal control
Reliability Analysis
Parts stress analysis will be done by each Cog-E in lab notebook format as part of the design process
Lab notebook level FEMCA’s may be done on selected sub-assemblies
NCKU UCB Tohoku Product Assurance H. Heetderks
SDR 7 Jun 2000

8. ISUAL Safety ISUAL Instrument Personnel Hazards
High Voltages are totally enclosed
No pressure vessels, toxins, radioactive sources, high force mechanisms, high temperatures, stored energy devices, or heavy components
SSL Test System Personnel Hazards
Existing test equipment has hazard controls in place
New optics test lab may have sources which require controls
Protection of ISUAL Hardware
Incorporation of safety protections into instrument design
E.g. HV command enable, day light sensor, current limited power distribution
Certification of test beds and equipment
Careful review of test procedures (e.g. for buried removal of command interlocks)
Test procedures verified on ETU system
Use of proper transport procedures
NCKU UCB Tohoku Product Assurance H. Heetderks
SDR 7 Jun 2000