# Presentation: 706037

## Section 24	

_***Section 24***_***	***
***Flight Assurance***

*** ******. . . Michael Kelly***
*EO-1 Systems Assurance Manager *

## Parts

***Parts***

***Requirement***
***All parts were selected in accordance with GSFC 311-INST-001 for Grade 3 quality level***
***Major Non-Compliances***
***Waiver for use of Commerical Parts in RF Exciter Board (part of WARP)***
***Hyperion and ALI radiation issues are still open***
***Part list for Spacecraft not yet delivered -- part of Swales Acceptance Package***
***Elmwood Sensors and Minco Heaters used on the spacecraft are not compliant (commercial grade) -- no vendor screening***
***Unsure of final part quality for the AC -- as-built parts list still outstanding***

## Materials

***Materials***

***Requirement***
***NASA Reference Publication 1124 entitled “Outgassing Data for Selecting Spacecraft Materials”***
***Hardware developer provided PWB coupons to GSFC for evaluation***
***No major non-compliances exist on this spacecraft***

## Testing and Verification

***Testing and Verification***

***SAM is satisfied with testing program thus far with 1 lien***
***All environmental testing reports have not been written and data thoroughly evaluated by engineers. However, data was reviewed in real-time***
*Thermal Vacuum*
*First CPT*
*EMI Report from Conducted and Self-Compatability Testing*
*Second CPT (Dec 7-9)*

## Other Project Liens

***Other Project Liens***

***Complete closure of Software Code Walkthrough Action Items***
***Requests For Actions from Major Project Reviews***
***Acceptance Data Package for the Spacecraft ***
***Final version of the Operations Constraints Manual***
***Environmental Verification Plan***
***Finalize Acceptance Data Package for WARP and AC***

## Safety

***Safety***

***Flight***
***Flight hardware meets EWR 127-1 requirements***
***Range***
***All hazardous & non-hazardous TOPs reviewed by range safety***
***Launch site safety plan submitted***
***Final MSPSP to range safety submitted December 1999***
***All hazard verification items closed***
***Ground Support Equipment***
***GSE meets EWR 127-1 requirements***
***Open Issues***
***None***

## Major Issues During Box Built-Up

***Major Issues During Box Built-Up***

***Conformal coating issue of WARP Memory Boards***
***The wire bonds were bent during the cleaning process prior to conformal coating at GSFC. Some of the wires are almost touching. None of the bonds appear to be broken. Both memory boards have been almost 100% electrically tested at the card-level using the bench test equipment. In addition, both boards have been tested with the other flight boards in the flight WARP box. No problems during any of this testing.***
***The Memory ETU Board did not exhibit this problem during its cleaning. This board was run through the same process.***

## Major Issues During Box Built-Up

***Major Issues During Box Built-Up***

***No engineering model boards were available during the built of both the WARP and AC boxes***
***Flight boards have received multiple reworks during the troubleshooting process of the boards and their respective box***
***Focal Plane Contamination***
***Continues to exist after instrument bakeout at Lincoln Laboratory. Spacecraft is planning operational constraint to deal with this contamination. This is in process.***

## Open Paperwork 

***Open Paperwork ***

***EMI/EMC Waivers***
***For Hyperion, ALI, WARP, AC, AST, IRU, PSE, ACDS***
***Other Box and Instrument-Level Waivers***
***Failure Reporting Systems***
***Project RFAs***
***Swales Problem Record (PR)***
***Hammers Software Tracking (PTR)***
***MOC Faliure Reporting ***
***GSFC NCR System***

## Mission Assurance Summary 

***Mission Assurance Summary ***

***Hardware and software are in reasonable shape for a “faster, better, cheaper” mission***
***Considerable open paperwork needs to be continually addressed and closed***
***Project is doing the best it can with the current staffing levels***
***Difficult challenge to close all open actions by January 19, 2000 (************ PSR)***

## Special Topic:

***Fiber Optic Cable ALERT***

## Fiber Optics Alert 

***Fiber Optics Alert ***

***MAP conducted some tests on their flight cables and discovered that their cables did not contain the same failures as the Space Station fiber optic cables ***
***EO-1 cables are similar to the MAP cables***
***EO-1 cables are already mounted to the spacecraft and have successfully passed environmental testing. Inspection of the EO-1 fiber optic cables would represent a major schedule and cost hit to the project. The project is recommending a use-as-is disposition. The SAM concurs with this disposition.***

## Special Topic:

***Transceiver Capacitor ALERT***

## GIDEP Alerts 

***GIDEP Alerts ***

***ATC Capacitors***
***Used in transponder only. GSFC experts are reviewing the parts list to determine if there is an impact***
***Optocoupler Usage***
***Used throughout the spacecraft. GSFC engineers have evaluated each optocoupler application. No problems with usage. Use-as-is disposition.***
***Vishay Resistors***
***Used in Hyperion Instrument only. Vishay resistors were used in 9 different locations due to schedule constraints. Wilbrecht resistors were ordered by TRW as a back-up. The GSFC / TRW agreement was to use the Wilbrecht resistors only if there was a failure with the Vishays. This has not occurred to date. In addition, the Vishay Resistor Assessment Team at GSFC approved the Vishay usage.***