Risk Acceptance and Safety Documentation Review  Section 6  6.7  Revising an SRM Document  Through post-implementation monitoring, a need to modify the previously approved Safety Risk  Management (SRM) document may arise (see  Section 4.3.2). This requires a revision of the  SRM document and new SRM document approval and risk acceptance signatures.  The risk acceptor(s), in coordination with the change proponent, may need to update or change  an SRM document as a project progresses and decisions are modified. As discussed in  Section  3.7.2, monitoring may indicate that the National Airspace System (NAS) change does not meet  the predicted residual risk, that the risk management strategy is less effective than expected, or  that additional hazards exist. In this case, additional safety requirements may be necessary. Any change to the safety analysis that may affect the assumptions, hazards, causes, or  estimated risk in an SRM document necessitates a revision, including new signatures. A  change page (containing a description of each change to the SRM document and the number of  each affected page) must be included with each SRM document.  If evaluations conducted by organizations external to the SRM panel indicate high residual risk  for existing hazards, a revision to the SRM document is needed. These include Independent  Operational Assessments, Flight Inspections, post-implementation safety assessments, Safety  and Technical Training audits and assessments, and the NAS Technical Evaluation Program. Based on the results of these assessments, the change proponent may need to modify the SRM  document, which could include reopening the safety analysis for additional assessment.  97 6.7_SMSM_201607  Originally published July 2016  Uncontrolled copy when downloaded Table 6.4: Signature Requirements for SRM Document Revisions  Part of SRM  Document Changed  Type of Change  Version Protocol  New SRM Document  Approval Signature and  Risk Acceptance  Required?  Safety analysis  New hazard; change to predicted  residual risk assessment  Whole number  revisions (e.g., 1.0 to 2.0)  Yes  Safety analysis and  safety requirements  Adding, changing, removing, or not  implementing new or existing  safety requirements  Whole number  revisions  Yes  System description  Updating charts, maps, airport  layout, and approach plates, as  long as change does not affect  hazards or risk levels  Decimal revisions  (e.g., 1.0 to 1.1, 1.2)  No  Risk analysis and  assessment  Adding rationale or data for risk  assessment when risk is not  changed and/or means to reduce  safety risk are not added or  changed  Decimal revisions  No  Safety requirements,  monitoring plan, and  appendices  Clarification of safety requirements,  including Standard Operating  Procedures, Letters of Agreement,  letters to airmen, and  implementation and monitoring  reports, as long as risk is not  changed and means to reduce  safety risk are not added or  changed  Decimal revisions  No 