GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 1 GLAST Large Area Telescope: Pre-Environmental Test.

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Presentation transcript:

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 1 GLAST Large Area Telescope: Pre-Environmental Test Review Performance & Safety Assurance Joseph Cullinan SLAC Performance & Safety Assurance Manager (650) Gamma-ray Large Area Space Telescope

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 2 Performance and Safety Assurance Overview Performance Assurance Documentation Performance Assurance Process for Hardware Assembly, Integration and Test Parts/Materials Control Document Control Process Nonconformance Reporting Process LAT NCR Summary Metrics Software QA Process System Safety Contamination Control and ESD Training and Certification Conclusion

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 3 Performance Assurance Documentation LAT program requirements are defined in GSFC Mission Assurance Requirements document 433-MAR-0001 rev. A Key documents that define the LAT Quality System and implement LAT PSA requirements: -LAT-MD-00039, Performance Assurance Implementation Plan -LAT-MD-00091, LAT Quality Manual -LAT-MD-00068, Configuration Management Plan -LAT-MD-00104, LAT Flight Software Management Plan -LAT-MD-00404, LAT Contamination Control Plan -LAT-MD-00471, Control of Nonconforming Product -LAT-MD-00078, System Safety Program Plan -LAT-MD-00099, EEE Parts Control Program Plan -LAT-SS-00107, Mechanical Parts Plan -LAT-MD-03474, Redline/Blackline Engineering Documents Procedure -LAT-TD-02635, Supplier Quality Assurance Requirements Document -SOWs for vendor supplied hardware Additional documents that define and implement PSA requirements for NRL operations: -LAT-PS-06898, Environmental Test Implementation Plan -LAT-MD-08139, LAT Environmental Test Hazard Analysis -LAT-PS-07728, LAT Environmental Test Handling Procedures -433-PLAN-0018, LAT Instrument Transportation Plan

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 4 Performance Assurance Process for Hardware Assembly, Integration and Test (1) Drawings, procedures, test plans, SOWs, and requirements documents define design and QA requirements for LAT hardware -Collaborator-furnished hardware: ACD, CAL, TKR -Supplier-furnished hardware: electronics assemblies, cables, Grid, thermal control system, fab’d parts -Supplier-furnished parts and materials: mechanical and EEE parts, adhesives, fasteners, etc. Performance Assurance capabilities of Collaborators and Suppliers met program requirements throughout production -Performed in-process and final inspections, nonconformance resolution, traveler/work order authorization and acceptance, test data review and acceptance when required, documentation review and archiving Delivery of Collaborator-furnished hardware to SLAC -Pre-ship review performed for each module to be delivered -ATDP and nonconformances reviewed by LAT Subsystems, I&T, Systems Engineering, QA and Collaborator for approval -Open nonconformances from pre-ship review carried up to LAT level for continued evaluation as required -Hand-off to I&T after successful post-ship performance test at SLAC Delivery of Supplier-furnished hardware to SLAC -Performance and environmental testing of electronic assemblies was completed at SLAC -Performed in-process/final inspections, maintained nonconformance reports and documentation -ATDP and nonconformances reviewed by LAT Electronics, I&T, Systems Engineering and QA for approval prior to module hand-off to I&T ATDPs for Collaborator hardware complete and available on-line ATDPs for Supplier-furnished hardware complete and on record at SLAC (hardcopy and on-line)

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 5 Performance Assurance Process for Hardware Assembly, Integration and Test (2) Throughout LAT Integration and Testing at SLAC, the Performance Assurance process ensured oversight, documentation and approval of: -Integration and test procedures and work orders (AIDS) -inspections, witnessing, nonconformance reporting/closure, data review -test software script development, validation and verification -flight software development, validation and verification

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 6 Performance Assurance Process for LAT Environmental Testing at NRL The Performance Assurance process and requirements will be maintained during testing at NRL -SLAC and NRL QA and Contamination Control personnel will provide on- site support for duration of LAT testing at NRL -Testing, hardware handling, inspections, witnessing, data collection, documentation review/approval will be performed according to SLAC test plans, test procedures and AIDS -SLAC and NRL QA personnel participated in Pathfinder activities and are familiar with the expected test operations and sequences -NRL QA personnel have been trained on the use and application of the LAT nonconformance and AIDS databases -NRL test personnel have the expertise to fully support all phases of LAT environmental testing

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 7 Parts/Materials Control Process has been established for parts procurement, handling, inspection, inventory control and storage in environmentally controlled bonded stores -Supplier Quality Assurance Requirements LAT-TD are included on purchase orders to ensure required parts/materials certifications and traceability documentation is delivered with hardware -All incoming hardware is inspected to relevant drawings, SOWs and requirements defined on purchase order. -Receiving documentation for all parts is maintained on file in bonded stores -Discrepant, downgraded or scrap hardware is labeled and stored in locked MRB cabinet Materials and Processes List -Materials and Processes List has been updated and approved by Materials and Processes Control Board prior to LAT shipment to NRL -Material Usage Agreements (MUA) document the use of non-compliant materials -Total of 6 MUAs have been submitted and approved by GSFC EEE Parts Lists -All EEE parts have been approved by the Parts Control board -Completing update of EEE Parts Lists to include additional information requested by GSFC -date code, lot number, reference designator information is being added from records for some approved parts on lists. GIDEP and NASA Alerts -All GIDEP and NASA alerts are reviewed to verify any impact on the LAT -No impact of GIDEP and NASA alerts to date on any approved LAT materials or EEE parts

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 8 Document Control Process Documents are reviewed and approved for release per the Configuration Management Plan LAT-MD These include drawings, process specifications, test procedures, test plans, SOWs, management documents, requirements documents, ICDs. QA is responsible for ensuring that all work is performed to a released document. -Procedure for redline and blackline changes to assembly and test documents is controlled by LAT-MD Redlined documents are revised to incorporate changes LAT QA reviews and approves each AIDS created for assembly, integration and test -AIDS sequences signed off as completed -After final Engineering and QA review, completed AIDS are archived This document control process will be maintained throughout environmental testing at NRL

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 9 Nonconformance Reporting Process Nonconformance Reports (NCRs) and JIRAs are controlled by LAT-MD-00471, Control of Nonconforming Product NCRs document a discrepancy to a hardware or software requirement and are documented in a database maintained by SLAC QA -Material Review Board (MRB) is convened to disposition and close NCRs -MRB minutes are captured in NCR database -Per the MAR, NCRs are reported to GSFC when created, updated, and when closed for final concurrence. JIRAs are used to track nonconformances documented against flight and test software -JIRA Online database documents test software discrepancies and is maintained by I&T -JIRA FSW database documents flight software discrepancies and is maintained by the FSW group -Software changes are implemented and tracked through JIRAs. Changes are first reviewed and approved by the respective FSW and I&T CCB with SLAC QA participation -Verification and validation with SLAC QA approval is performed for all software changes prior to using update software with flight hardware SLAC NCR and JIRA databases will be the nonconformance reporting system used at NRL

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 10 LAT NCR Summary Metrics LAT NCRs created during SLAC operations through Affected HardwareDAQTKRACDCALMechanicalI&T * TOTAL Flight Non-Flight TOTAL TOTAL OPEN * includes all ACD related NCRs created after ACD was delivered

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 11 Software QA Process FSW Builds -LAT QA participates in FSW CCB to track and document approved changes to FSW, test script or test procedures -FSW build list is audited and checked for expected results -QA witnesses formal tests and builds data -FQT of FSW has been successfully completed I&T Test Scripts and Test Software (LICOS, LATTE, ELogbook) -LAT QA participates in I&T CCB to review changes -Participates in tabletop reviews for test script code development -QA reviews/approves test procedure, witnesses test and creates data package to complete V&V of script or test software application Successfully completed software quality assessments by GSFC SQA -Engineering Peer Review -Requirements Management Process -Project Planning -Risk Management -Software Problem Reporting.

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 12 System Safety SLAC Systems Safety has documented the following plans and analyses for LAT: -LAT-MD-00366, LAT Preliminary Hazard Analysis -LAT-MD-00078, LAT Systems Safety Program Plan -LAT-MD-01968, LAT Operating and Support Hazard Analysis -LAT-MD-08146, LAT Environmental Test Hazard Analysis Supported Pathfinder activities at NRL with GSFC Systems Safety -SLAC and GSFC will cooperate to provide direct monitoring by safety personnel during critical phases (LAT lifts and moves, table & chamber installations, ODH-controlled chamber entries, etc.) LAT has implemented and documented SLAC personnel safety requirements during hazardous operations (crane ops, energized circuits, etc) as part of I&T operating procedures Systems Safety has supported crane and lift fixture proof load verification and annual proof load recertification for SLAC and NRL operations LAT Environmental Test Hazard Analysis creates a system safety validation matrix of assessed risks and proposed mitigation during NRL operations -Will be used as a System Safety verification checklist before and during each test and handling operation at NRL 20 ton crane in NRL Hibay observed to have slight bend in one wire rope during LAT pre-ship inspection by GSFC -Plan in place to have wire rope replaced and crane recertified

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 13 Contamination Control and ESD Requirements are specified in LAT Contamination Control Plan -Class 100K cleanroom environment have been established and maintained at SLAC and collaborator facilities -Verification of LAT surface cleanliness to Level 650B prior to shipment to NRL is complete -Use of grounding wrist straps, dissipative smocks and hardware grounding has been implemented throughout hardware production to minimize risk of ESD damage -Helium monitoring has been implemented at SLAC per the ACD He Monitoring Plan -Changes to Contamination Control Plan currently being incorporated Contamination control for environmental testing at NRL -GSFC Transportation Plan 433-PLAN-0018 defines contamination control and purge requirements for LAT transport from SLAC to NRL -No contamination or environmental anomalies were experienced during LAT transport -LAT to remain bagged during vibration and acoustic testing at NRL (NRL test facilities are not certified to Class 100K) -Class 100K clean tent will be used at NRL as required when bagging has to be removed. -Approved plan in place to remove static dissipative bagging from LAT during EMI/EMC testing, since the electrically conductive bagging will interfere with test -LAT will be bagged when not under test -Portable HEPA filters will be used in test cell during non-test hours -Personnel will wear protective gowning at all times -LAT inspection and cleaning as required is planned following completion of EMI test -Certified nitrogen purge will be used as required at NRL to maintain relative humidity requirements of bagged LAT -Helium monitoring will continue throughout testing at NRL

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 14 Training and Certifications SLAC and collaborators received training in contamination control, cleanroom operations and ESD prior to working with flight hardware SLAC and collaborator personnel were certified to NASA soldering and wire strip/crimp workmanship standards (or equivalent approved ESA standards) when required to perform these operations -Select personnel also received NASA soldering instructor certification and ESD instructor certification LAT QA inspectors were experienced in NASA workmanship standards and inspected hardware to these requirements

GLAST LAT ProjectMay 25, 2006: Pre-Environmental Test Review Presentation 12 of 12 Quality Assurance 15 Conclusions An acceptable quality system has been established for the LAT The quality system in place at SLAC will be implemented at NRL -NRL and SLAC personnel are capable of implementing the quality system consistently and successfully throughout environmental testing -All testing and handling at NRL will be performed to LAT documentation Ready to begin environmental testing