Standard
Powerplant Electrical Wiring Interconnection Systems (EWIS) Compliance for Fire Protection
2024-04-08
WIP
ARP8998
This document defines a consistent industry approach on engine and and auxillary power unit (APU) wiring to meet aircraft EWIS fire and flammability requirements. EWIS regulations apply to many different aircraft types that have propulsion systems certified to FAA 14 CFR part 33 & EASA CS-E. This document will compare these aircraft regulations and then reference the current 14 CFR part 33 requirements for propulsion systems to demonstrate how they can be leveraged to show compliance to EWIS requirements for all aircraft types. APUs are certified to the aircraft level requirements and are included in this document to clarify the type of data suggested to meet the Part/CS-25 EWIS requirement and/or associated normal aircraft regulations.