Home' RTCA Documents for Review : Addressing Human Factors/Pilot Interface Issues Contents 11
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Obtain agreement between the applicant and the certification authority on the type
and sufficiency of analyses, evaluations, tests, demonstrations and other data
gathering efforts to show compliance to the relevant regulations. It is important to
recognize that several methods may be acceptable for any given regulation. In
coordination with the certification authority, the applicants may select methods
based on their compliance strategy, schedule, and cost considerations. The
applicant and the certification authority should agree on the level of conformity of
parts and level of aircraft representativeness to the production version of the pilot
interface that is acceptable for evaluations versus formal tests.
Obtaining agreement on the plan for human factors compliance entails meetings
between the applicant and the certification authority personnel responsible for
certification approval of the design. The certification authority may agree or
recommend revisions to the proposed MOC depending on the novelty (see
Glossary for definition of novelty) or complexity of the system being developed.
In addition to meetings, various forms of early demonstrations may be used to
familiarize the certification authority with the design concept including an
invitation to visit the applicant’s facility. The applicant and certification authority
should ensure that the specialists from the appropriate disciplines for the design
concept being discussed (which may include human factors, pilots, avionics
engineers, mechanical engineers, etc.) are included in meetings and discussions.
For TSOA applicants, product and system evaluations are typically conducted in
conjunction with an installation. For a concurrent TC/STC/TSO activity, a
certification plan at the TC/STC level would identify all human factors activities,
and may include anything completed under the TSO for which the applicant could
request certification credit (plans, test results, and other items that can be applied
to use in an installation from the original TSO approval). Conversely, concurrent
TC/STC/TSO human factors activities performed under Type Inspection
Authorization (TIA) for certification credit may also be applied to use for TSO
credit. For either case, arrangements have to be made and agreed upon prior to
testing, depending on the amount and type of testing proposed. These issues are
negotiated with the responsible certification authority as part of the approval of the
plan for human factors compliance.
The applicant documents the outputs and agreements with the certification authority as part
of an updated plan for human factors compliance. This may be documented in a separate
plan for human factors compliance or included in the overall project certification plan. The
certification plan includes, but is not be limited to the following:
1. System description (see Glossary for a definition) that matures throughout the
Papers/Certification Review Items, MOCs, and discipline(s) responsible for approval
(e.g., retained by certification authority, delegated to applicant, delegated to one
Note: For TSOAs, the compliance for the feature or end item (not installed) will be to the
Minimum Aviation System Performance Standards, Minimum Operational
Performance Standards, or equivalent SAE standards and their task applicability
identified in the TSOA.
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