MIL-HDBK-522A, DEPARTMENT OF DEFENSE HANDBOOK: GUIDELINES FOR INSPECTION OF AIRCRAFT ELECTRICAL WIRING INTERCONNECT SYSTEMS (10-FEB-2016)
MIL-HDBK-522A, DEPARTMENT OF DEFENSE HANDBOOK:
GUIDELINES FOR INSPECTION OF AIRCRAFT ELECTRICAL WIRING
INTERCONNECT SYSTEMS (10-FEB-2016)., This
handbook provides guidance and lessons learned in the inspection of EWIS. This handbook is for
guidance only and cannot be cited as a requirement. If it is, the contractor does not have to
comply. This handbook is a guide for aircraft Electrical Wiring Interconnect System (EWIS)
inspection. In case of conflict between the aircraft/platform-specific maintenance manual and
this handbook, the platform specific manual will take precedence. Not all possible wire systems
factors have been addressed. This handbook captures in one document, under suitable subject
heading, fundamental installation criteria guidelines. The opportunity to focus on a single
document results in substantial savings to the Government. All aircraft are filled with miles of wiring and hundreds of wiring devices that connect and
transfer power and signals to and from electrical components. Virtually all aircraft systems rely
heavily on some type of wiring for safe operation. Much like the structural components of an
aircraft, the health and integrity of the EWIS can be significantly compromised due to premature
aging, damage, and failure of wiring insulation. It is integral to the overall maintenance and
sustainment of all aircraft that the EWIS be treated as a system and as a system be afforded the
same level of importance as the aircraft structure and other critical flight control systems.