ConsuNova Safety & Reliability Services

Reliability and Safety Engineering

ARP 4761 System Safety Assessment Services

ConsuNova senior engineers deliver world-leading professional services, focused on helping capable and innovative companies become better at developing complex & mission-critical and safety-critical systems.

Domain-specific senior consultants will augment your projects; on-site or off-site.
We connect the dots to make a network of solutions, and we take our project as seriously as your customers take your products.

  • The Safety Assessment process is a significant part of the aircraft certification process by national, European (EASA) and US (FAA) regulatory authorities.
  • The Aircraft Safety Assessment process includes verification of the requirements of the aircraft development activities. The Safety Assessment process also provides the methodology for ensuring that all significant failure conditions have been identified and considered.
  • The path is to start from Functional Hazard Analysis (FHA) at the beginning of the aircraft development, performing Preliminary Hazard Analysis (PHA), Preliminary System Safety Assessment (PSSA) and finally System Safety Assessment (SSA) and Safety Assessment Report (SAR).

Safety Analysis Services

Safety Analysis based on ARP 4761 or MIL-STD-882 

FHA Analysis

- We perform Functional Hazard Assessment (FHA) is to identify functions, failure conditions of functions (loss of function, malfunction, etc.), and their classification (catastrophic, hazardous, etc.) so that aircraft and system designs may be proposed and achieved.

- FHA Output Data includes: Function List , Failure Conditions , Effect of the Failure Condition on the Aircraft, Flight Crew, and Occupants, Classification of the Failure Condition, Verification Method.

PSSA/SSA Analysis

-  PSSA analyses is performed during the system requirements and item requirements phases of the aircraft life cycle. The PSSA is where the proposed aircraft and system architectures are evaluated and defined; this provides the ability to derive system and item safety requirements.

- The documents produced during the PSSA are the updated aircraft and system FHAs, updated aircraft and systems FTAs, and the preliminary system Common Cause Analyses (CCAs).

- The PSSA is a continuous and iterative process. The SSA verifies that the implemented aircraft and system designs meet the requirements of the aircraft FHA and the PSSA.

Reliablity Predictions

- ConsuNova performs ARP 4761 Reliability Prediction for electronic and nonelectronic parts according to any of the existing reliability standards.


Reliablity Calculations

- Reliability calculations are based on electrical/thermal stress analysis. The output is a report with a breakdown of MTBF and MTBCF figures per system, unit, board and component levels.

Fault Tree Analysis (FTA)

- ARP 4761 Fault Tree Analysis and event tree analysis are two of the most mature and versatile methods for dealing with probabilistic risk, reliability and availability issues.

- Including software in a system Fault Tree Analysis or quantitative hazard analysis is essential in software-heavy systems. Not only does Software fail, it is often included as a mitigation element to hardware failures. A system analysis is incomplete without including the software elements and the interfaces between software and hardware.

FMEA/FMECA Analysis

- Failure Mode and Effect Analysis (FMEA) is an engineering technique for identification and elimination of known and/or potential problems within a system.

- FMEA is an ongoing process that should begin as part of the first design review and continue throughout the life of the product.

- ConsuNova experts perform the FMECA, focusing on the critical failures as well the potential failure modes analysis for design and process. ConsuNova will follow FMECA according to the MIL-STD-1629A requirements and process/design FMEA in compliance with QS 9000 guidelines

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Have a Safety or Reliablity Question?

Address

9920 Pacific Heights, Suite 150
San Diego, CA 92121 USA 

Contacts

Phone: +1 858-444-6762
Fax: +1 858-430-3117