Safety
& Reliability
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