This unique NASA report provides information and lessons learned from shuttle avionics testing constraints. Objective - Consolidate within one report the operational Constraints and Considerations for launch site testing of the present Shuttle Avioni... Read more

This unique NASA report provides information and lessons learned from shuttle avionics testing constraints. Objective - Consolidate within one report the operational Constraints and Considerations for launch site testing of the present Shuttle Avionics systems. Constraint - Testing that requires special vehicle configurations and ground support equipment configurations. Consideration - Testing configurations that have driven special infrastructure/ resource requirements, or have high failure rates. Purpose - To provide to the designers of future avionics systems the information required to possibly design out these concerns.Contents: GENERAL * 1. INSTRUMENTATION COEFFICIENTS * 2. TELEMETRY DATA AVAILABILITY * 3. AVIONICS COOLING * 4. CONNECTOR RETEST * 5. CONNECTOR MATED INDICATION * 6. PARALLEL SWITCH CONTROL * 7. MAN-IN-THE-LOOP * 8. AVIONICS LRU ACCESS / MOUNTING * 9. AVIONICS LRU FASTENING DEVICES * 10. AVIONICS LRU GROUND HANDLING EQUIPMENT * 11. AVIONICS BITE / TEST POINTS * 12. CRITICAL REDUNDANT POWER VERIFICATION * 13. SOFTWARE IN END-ITEM * 14. LOCAL OPF OPERATION * 15. UNPLANNED WORK * 16. VENDOR DRAWINGS * 17. HYDRAULICS * DPS * 1. MEMORY DUMP & COMPARE * 2. MASS STORAGE DEVICE CAPABILITY * 3. GPC MULTIPLE MEMORY CONFIGURATIONS * 4. LAUNCH BUS SPEEDUP * 5. MDM RETEST * 6. CRT VIDEO OUTPUT * GNC * 1. INDEPENDENT CONTROL OF ACTUATOR POWER * 2. ENGINE COLLISION * 3. SSME HYDRAULIC CIRCUITS ISOLATION * 4. ENGINE CHANGEOUTS DRIVE CLEARANCE TESTS * 5. SRB TVC FLEX BEARING RESTRICTION * 6. SRB NOZZLE FLEX BEARING TEMPERATURE * 7. EXCESSIVE AEROSURFACE POSITIONING REQUIREMENTS * 8. NOSEWHEEL STEERING (NWS) TESTING * 9. BRAKES/ANTI-SKID MAINTAINABILITY * 10. REACTION CONTROL SYSTEM (RCS) VERNIER DRIVERS * 11. RCS DRIVERS-DRIVER POWER ACTIVATION * 12. ACCELEROMETER ASSEMBLIES (AA) INACCESSIBLE * 13. IMU HEALTH ASSESSMENT * 14. STAR TRACKER LENS & LIGHT SHADE INSPECTION * 15. STAR TRACKER CONTAMINATION * 16. ENTRY AIR DATA SENSORS UNDEPENDABLE * 17. DEPLOYABLE ENTRY AIR DATA PROBES * TELECOMM * 1. HOLLOW RF WAVEGUIDES THAT PENETRATE PRESSURIZED STRUCTURE * 2. HAZARDOUS RF SYSTEMS & GROUND ANTENNA COUPLER REQUIREMENTS * RMS * 1. AUDIBLE TESTING * SSME * 1. SSME INSTRUMENTATION CALIBRATION COEFFICIENTS * GLOSSARY/ACRONYMS Less