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In Flight Entertainment System

In Flight Entertainment System. IFES (NRE). IFES. Several FAA AD’s were issued on large transport category aircraft 737, 747,757, 767, DC-9, DC-10, A-340). Issues. Inability to load shed bus feeding IFES (NRE) without affecting required loads

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In Flight Entertainment System

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  1. In Flight Entertainment System IFES (NRE)

  2. IFES • Several FAA AD’s were issued on large transport category aircraft 737, 747,757, 767, DC-9, DC-10, A-340)

  3. Issues • Inability to load shed bus feeding IFES (NRE) without affecting required loads • Inability to remove power from IFES without pulling CB’s • Crew procedures not revised to address removal of power from IFES

  4. IFES (NRE) • Proper selection of wiring and coordinated CB’s. Adequate electrical load analysis • The switching must be incorporated as close as possible to the bus • Proper entry to AFM sections and crew Manual, if applicable • Proper definition of the configuration, ICAW

  5. Proper Documentation of IFES (NRE) • Type design includes drawings and specifications necessary to define the wiring configuration, wire routing, shielding, clamping, conduits, etc. • Obtain or determine the applicable OAM design standards and/ or practices for a given installation • Inspect the aircraft to be modified to ensure compatibility

  6. System Safety Assessment (NRE) • An SSA (FHA, FMEA, Zonal analysis, as applicable) is done as part of installation of any equipment on the aircraft. • Failure of wiring bundles (e.g.chafing) may affect the required systems (separation from aircraft basic wiring) • Modifications compatibility with installation and routing practices for original type design

  7. IFES (NRE) • The installation of IFES (NRE) must not result in any degradation to the level of safety which was achieved at the time of the original type certificate

  8. Objectives/ Draft Policy (TCCA) • FAA Policy was originally intended for large transport aircraft where the IFES is consuming large amount of electrical power and there are multiple outlets • TCCA has drafted a Policy which will indicate its validity on all transport category aircraft where the IFES (NRE) is fitted. It should also be considered on commuter category

  9. Discussion

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