• Corrective or preventive measures to minimize the possibility of an error resulting in an  aviation incident or accident;  • Recommendations for changes in hardware, software, or procedures to achieve an  acceptable level of safety risk in the NAS operational environment;  • Development of effectively placed warning and caution notes, as necessary;  • Requirements for special training information for personnel who will carry out the  procedures; and  • Recommendations for special equipment, such as personal protective clothing or  devices (e.g., antistatic wrist straps and mats), that may be required for tasks to be  carried out without impacting the safety of NAS operations. • Previous safety analyses (e.g., PHAs, System Hazard Analyses or Sub-System Hazard  Analyses). • Procedures.  • Sequence diagrams.  • Operation and functional analyses.  • Equipment layout diagrams.  • System and sub-system design specifications.  • Equipment and interface drawings.  • Operations and maintenance instructions.  • Human factors engineering data.  • Task design.  • System/operational design.  • Hardware failure modes. • Required tasks, the human-machine environment, interpersonal interactions, and the  sequence of operating/support steps will not create an unacceptable safety risk to NAS  operations;  • Procedures do not expose personnel to any unacceptable safety hazards that may  impact NAS operations;  H_SRMGSA_202003 Originally published March 2020  Uncontrolled copy when downloaded  H-3  An analysis of the operating/support procedures must be completed to ensure that: Prior to performing the O&SHA, appropriate task analyses should be conducted on all pertinent  phases of operation/support. In addition, the following are some of the other possible inputs for  an O&SHA:  An O&SHA provides:  3.4  Inputs 4  Preparing the O&SHA 4.1  Analyzing Procedures 