Safety
& Reliability

When failure is not an option, safety and reliability must be engineered from day one.
In aerospace, defense, and other mission-critical applications, safety and reliability are not just regulatory requirements — they are essential to mission success. A weak safety or reliability approach can lead to costly redesigns, operational failures, or certification stoppers.
Build safety and reliability into your system, not just into your reports.

HOW WE HELP

Safety & Reliability Plans

We define tailored strategies to ensure compliance with airworthiness requirements (CS/FAR 2X.1309), using or adapting recognized industry standards such as ARP4761A/ED-135, ARP4754B/ED-79B, and MIL-STD-882 from the earliest development stages.

Safety Assessment Process

We support the development of complete safety assessment processes, including:

  • Aircraft Functional Hazard Assessment (AFHA)
  • Preliminary Aircraft Safety Assessment (PASA)
  • System Functional Hazard Assessment (SFHA)
  • Preliminary System Safety Assessment (PSSA)
  • System Safety Assessment (SSA)
  • Aircraft Safety Assessment (ASA)

Safety Assessment Methods

We apply industry-recognized methods such as:

  • Fault Tree Analysis (FTA)
  • Dependence Diagrams (DD)
  • Markov Analysis (MA)
  • Failure Modes and Effects Analysis/Summary (FMEA/FMES)
  • Cascading Effects Analysis (CEA)
  • Zonal Safety Analysis (ZSA)
  • Particular Risks Analysis (PRA)
  • Common Mode Analysis (CMA)

Reliability Prediction, Analysis, and Demonstration

We perform MTBF calculations, reliability predictions, demonstrations, and optimizations using methods like Reliability Block Diagrams (RBD) and FME(C)As (both functional and piece-part level). Standards and sources include:

  • MIL-HDBK-217
  • MIL-HDBK-338B
  • MIL-STD-1629A
  • IEC 60812, IEC 61078
  • ANSI/VITA, FIDES, Telcordia
  • NPRD and EPRD component libraries

Request information

At ANZEN we work with leading companies that trust our ability to solve complex projects with agility, precision and commitment.
If you would like to start a conversation with our team, we would be delighted to hear from you.