scope:

PURPOSE.

This notice provides guidelines to Aircraft Certification Service (AIR) field offices (i.e., Aircraft Certification Offices and Manufacturing Inspection District or Satellite Offices) and to Designated Engineering Representatives (DER) regarding the application of RTCA/DO-178B, "Software Considerations in Airborne Systems and Equipment Certification," for conducting software reviews. Advisory Circular (AC) 20-115B, "RTCA, Inc. Document RTCA/DO-178B," recognizes DO-178B as an acceptable means of compliance for securing the Federal Aviation Administration's (FAA) approval of software in airborne systems and equipment. This notice establishes guidelines for conducting software reviews during the software development life cycle of airborne systems and equipment that are developed to meet the objectives of DO-178B.