Continuing the examination of the FAA EWIS separation requirements detailed in 25.1707, this article examines the next part of the regulation dealing with EMI. The second paragraph from FAA regulation 25.1707 focuses on electrical interference and addressing this from the wire system level. The regulation states:
“(b) Each EWIS must be designed and installed so that any electrical interference likely to be present in the airplane will not result in hazardous effects upon the airplane or its systems.”
According to the FAA’s guidance document on this regulation (25.1701-1), the following sources for EMI should be considered with regard to how they affect the EWIS:
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