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LRO Safety

LRO Safety. Dave Bogart Code 302 August 16-17, 2005. LRO System Safety - Requirements. NPD 8700.1 NASA Policy for Safety and Mission Success. NPD 8710.2 NASA Safety and Health Program. Level I. NASA-STD-8719.8 ELV Payload Safety Review Process. NPR 8715.3 NASA Safety Manual.

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LRO Safety

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  1. LRO Safety Dave Bogart Code 302 August 16-17, 2005

  2. LRO System Safety - Requirements NPD 8700.1 NASA Policy for Safety and Mission Success NPD 8710.2 NASA Safety and Health Program Level I NASA-STD-8719.8 ELV Payload Safety Review Process NPR 8715.3 NASA Safety Manual RLEP Mission Assurance Requirements (MAR) AFSPCMAN 91-710 Range Safety User Requirements Level II LRO Spacecraft PAIP LRO System Safety Program Plan Level III Instruments’ Performance Assurance Implementation Plans (PAIPs) Instruments’ System Safety Program Plans

  3. LRO Systems Safety - Requirements • NASA Safety Policy NPD 8700.1 defines LRO’s safety objectives • NASA Safety Manual NPR8715.3, and Range Safety User Requirements Manual AFSCM 91-710 (Volumes 1, 3 and 6) define process, design, and operational safety requirements • Requirements for operations/processing: • At GSFC: GPD 8715.1, “Goddard Space Flight Center Safety Policy,” and 540-PG-8715.1.1, “Mechanical Systems Safety Manual Volume I and II” • At Launch Site: Range Safety User Requirements Manual, AFSCM 91-710 (Volume 6)

  4. LRO System Safety - Process • Develop LRO System Safety Program Plan (SSPP) and oversee implementation of SSPP • Perform Preliminary Hazard Analysis (PHA) that lists hazards, estimated severity and frequency, and potential controls • Perform System Hazard Analysis (SHA) to verify system compliance with safety requirements and recommend actions to eliminate or control risks • Perform Operations Hazards Analysis (OHA) to demonstrate planned I&T activities meet facility safety requirements • Perform Operating and Support Hazard Analysis (OSHA) to evaluate procedurally controlled activities for hazards and controls during prelaunch processing. • System Safety Manager is part of the LRO Systems Engineering team and participates in risk assessment.

  5. LRO System Safety - Deliverables • LRO System Safety Program Plan (SSPP) • Hazard Analyses (PHA, SHA, OHA, O&SHA) • Safety Compliance Checklist • Missile System Prelaunch Safety Package (MSPSP) • Hazard Control Verification and Tracking • Ground Operations Procedures • Safety Noncompliance Requests • System safety deliverables from the Instruments will be used as inputs to the LRO level safety documents

  6. LRO System Safety - Hazards • Pressure Systems (Propulsion) • Fuel (oxidizer) • Ordnance (Pyrovalves)/ Pyro release Mechanisms • Batteries • Ionizing Radiation (LEND, CRaTER for calibration) • Non-Ionizing Radiation • Laser • RF • Structure and Mechanism • Deployables (Solar Arrays, HGA) • GSE • Electrical • Pressure • Material Handling Equipment

  7. Safety Conclusion • The LRO safety requirements are well understood. • Preliminary hazards have been identified and plans are in place. • Mitigation activity planned is feasible. LRO safety is ready to proceed to PDR

  8. Back up charts Reliability • Code 302 Reliability engineers coordinate the reliability program. • Reliability analyses are conducted (FMEAs, FTAs, Parts Stress Analysis, and Worst Case Analysis) • Comparative numerical reliability assessments and reliability predictions are performed. • Trend data will be collected and monitored. • Limited life items are identified with the LRO Materials Engineer and tracked as needed (operating times, cycles, etc.) • Active Risk Management (ARM) tool used across project to manage risk • Formal Risk Management Board established, meetings held monthly

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