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7. Analysis procedure for lightning protection systems and high-intensity radiated fields (L/HIRF)
7.1 Objectives
The objectives of maintenance on L/HIRF high-intensity lightning and radiated-field protection systems are to reduce the possibility that the occurrence of a single failure or common-mode failure on redundant L/HIRF track elements could have an impact on airworthiness. To this end, the susceptibility to degradation caused by environmental deterioration and/or accidental damage of each element of the L/HIRF systems is analyzed.
Maintenance tasks for L/HIRF systems are developed as part of aircraft type certification and form part of the MRB report. Using logical analysis, the working group determines the applicable and effective maintenance tasks and their frequencies according to the consequences of protection system failures. The tasks concern...
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Analysis procedure for lightning protection systems and high-intensity radiated fields (L/HIRF)
Bibliography
Software tools
RELIASOFT, 2015, Synthesis, [MPC10 software for MSG-3], United States http://www.reliasoft.com
PTC, 2015, PTC Windchill MSG-3, [PTC Windchill software for the MSG-3], United States http://fr.ptc.com/
Websites
European Aviation Safety Agency website https://easa.europa.eu/regulations (consulted in September 2015)
Standards and norms
- 747 Maintenance Steering Group, Handbook : Maintenance Evaluation and Program Development - ATA – MSG-1 - 1968
- Airline/Manufacturer Maintenance Program Planning Document - ATA – MSG-2 - 1970
- Operator/Manufacturer Scheduled Maintenance Development, Volume 1 – Fixed wing aircraft and MSG-3: Operator/Manufacturer Scheduled Maintenance Development, Volume 2 – Rotorcraft - ATA – MSG-3 - 2013
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