1309 Consultants LLC

We provide services supporting the showing of compliance to the System Safety aspects of 14 CFR 23/25.1309. This includes certification planning to compliance showing using the guidance of AC 23.1309-1E, the Diamond and Arsenal drafts of AC 25.1309, SAE ARP 4754/A and SAE 4761.

The tools used include the following: Aircraft and System Functional Hazard Assessments, Functional Development Assurance Levels, Preliminary System Safety Assessments, Proposed Individual Development Assurance Levels Common Cause Analysis (including Zonal Safety Analysis, Particular Risks Analysis, Common Mode Analysis and independence requirements for the PSSA) and System Safety Assessments, Fault Tree Analysis (both qualitative and quantitative), Failure Mode and Effects Analysis.

The longer you wait...

...the more expensive it will be when you discover you can't meet a requirement. Let us help you find out what the requirements are, and then help you show that the design meets those requirements.

Use the System Safety process to identify the functions, and the hazard conditions associated with those functions. Establish requirements early to evaluate the proposed architectures.

Contact Us

1309 Consultants LLC
C. W. Robertson
1800 North 199th Street West
Goddard, KS 67052