NCATT AET AEIT ENDORSEMENT
QUESTIONS AND ANSWERS
Electromagnetic-Interference-(5.5.5.5)---ans-✔✔caused-when-electromagnetic-fields-
(radio-waves)-induce-high-frequency-voltages-in-a-wire-or-component.-(AC-43.13-1B-11-
89)
Grounding-(5.5.5.5)---ans-✔✔Establishing-a-physical-wire-path-that-gives-electricity-a-
path-to-earth/ground.
Bonding-(5.5.5.5)---ans-✔✔Connection-of-non-current-carrying-conductive-elements-ie.-
enclosures-and-structures.
Conductor-plating-(5.5.5.1)---ans-✔✔Copper-wire-plated-with-Tin,-Silver,-or-Nickel.-Tin-is-
the-most-common.-wire-plating-has-a-slower-oxidation-rate-than-bare-copper.
Voltage-drop-in-wires-(5.5.5.1)---ans-✔✔Should-not-exceed-2%-of-the-regulated-voltage-
when-the-generator-is-carrying-rated-current-or-the-battery-is-being-discharged-at-5-
minute-rate.
The-allowable-voltage-drop-in-a-28-volt-continuous-circuit-is:
a.-1-volt-
b.-2-volts
c.-5-volts
d.-4-volts---ans-✔✔a.-1-volt
Voltage-rating-(5.5.5.1)---ans-✔✔The-voltage-rating-of-a-cable-is-the-highest-voltage-that-
may-be-continuously-applied-to-a-completed-cable-construction-in-compliance-with-the-
relevant-cable-standard-or-specification
Shielded-wire-(5.5.5.1)---ans-✔✔Electrical-wire-that-is-enclosed-in-a-braided-metal-jacket.-
Electromagnetic-energy-radiated-from-the-wire-is-trapped-by-the-braid-and-is-carried-to-
ground.
Receiving-Inspection-(5.4.1.1)---ans-✔✔ensure-that-incoming-parts-are-checked-against-
purchase-orders,-manufacturers-specifications,-drawings-and-dimensions-and-other-
available-documentation-to-CONFIRM-AUTHENTICITY-of-the-material.-Conformance-to-
applicable-technical-standards-will-be-verified.-Incoming-material-must-be-separated-from-
previously-inspected-material
cable-(5.5.5.1)---ans-✔✔A-bundle-of-wires-covered-by-rubber-or-plastic-along-which-an-
electric-current-can-pass.
New-Equipment-Acceptance-(5.4.1)---ans-✔✔Receiving-inspection,-physical-condition,-
inventory-of-equipment-and-accessories-for-installation
, Visual-inspections-(5.4.1.2)---ans-✔✔New-parts-will-be-visually-inspected-to-confirm-the-
PN-and-SN,-the-part-markings,-and-general-condition.-All-parts/components-must-be-
accompanied-by-documents-the-CLEARY-INDICATE-APPROVED/ACCEPTABLE-
SOURCE.
Suspected-Unapproved-Parts-(SUP)---ans-✔✔Red-Tagged---Placed-in-quarantine---
report-using-FAA-Form-8120-11.-Ref.-AC-21-29.
Direct-Marking-(5.5.5.3)-1---ans-✔✔Several-different-methods-can-be-used-to-mark-
directly-on-the-wire:-hot-stamp-marking,-ink-jet-printers,-and-laser-jet-printers.-The-hot-
stamp-method-can-damage-the-insulation-of-a-newer-type-of-wire-that-utilizes-thin-
insulators.
Indirect-Marking-(5.5.5.3)-2---ans-✔✔Identification-sleeves-can-be-used-if-direct-marking-
on-the-wire-is-not-possible.-Indirectly-marked-wire-or-cable-should-be-identified-with-
printed-sleeves-at-each-end-and-at-intervals-not-longer-than-6-feet.-The-individual-wires-
inside-a-cable-should-be-identified-within-3-inches-of-their-termination
Wire-Identification-(5.5.5.3)---ans-✔✔All-wire-used-on-aircraft-must-have-its-type-
identification-imprinted-along-its-length.-It-is-common-practice-to-follow-this-part-number-
with-the-five-digit/letter-Commercial-and-Government-Entity-(CAGE)-code-identifying-the-
wire-manufacturer.-You-can-identify-the-performance-capabilities-of-existing-installed-wire-
you-need-to-replace,-and-avoid-the-inadvertent-use-of-a-lower-performance-and-
unsuitable-replacement-wire.
Wire-Identification-Requirements-(5.5.5.3)---ans-✔✔Identification-markings-should-be-
placed-at-each-end-of-the-wire-and-at-15-inch-maximum-intervals-along-the-length-of-the-
wire.-Wires-less-than-3-inches-in-length-need-not-be-identified.-Wires-3-to-7-inches-in-
length-should-be-identified-approximately-at-the-center.-Added-identification-marker-
sleeves-should-be-located-so-that-ties,-clamps,-or-supporting-devices-need-not-be-
removed-to-read-the-identification.-The-wire-identification-code-must-be-printed-to-read-
horizontally-from-left-to-right)-or-vertically-(from-top-to-bottom)
Performance-Standards---Technical-Standard-Order-TSO-(5.3.6.3)---ans-✔✔Minimum-
performance-standard-for-specified-materials,-parts-and-appliances-used-on-civil-aircraft.-
TSO-authorization-IS-NOT-an-approval-to-install-in-aircraft,-only-authorization-to-
manufacture-part-or-material.
Performance-Standards---Parts-Manufacturer-Approval-PMA-(5.3.6.3)---ans-✔✔PMA-
production-approval-allows-you-to-produce-and-sell-FAA-approved-aircraft-articles-that-
are-eligible-for-installation-on-FAA-Type-Certificated-Products.
schematic-diagram-(5.3.8.2)-installation-wire-diagrams---ans-✔✔A-schematic-diagram-is-
used-to-illustrate-a-principle-of-operation,-and-therefore-does-not-show-parts-as-they-
actually-appear-or-function.-However,-schematic-diagrams-do-indicate-the-location-of-
components-with-respect-to-each-other.-Schematic-diagrams-are-best-utilized-for-
troubleshooting.
Preservation-and-Storage-of-Aviation-Parts-(5.4.1)---ans-✔✔Articles-stored-for-installation-
on-civil-aircraft-or-awaiting-customer-disposition-shall-be-stored-or-preserved-IAW-
manufacturers-recommendations-or-other-government/industry-practices-designed-to-
provide-maximum-protection-from-damage-or-deterioration.
Preliminary-Inspection-(5.4.2.1)---ans-✔✔visually-inspect-all-items-for-physical-damage,-
ensure-all-necessary-and-current-information-and-specifications-are-available.
Record-Keeping---ans-✔✔The-Work-Order-Form
QUESTIONS AND ANSWERS
Electromagnetic-Interference-(5.5.5.5)---ans-✔✔caused-when-electromagnetic-fields-
(radio-waves)-induce-high-frequency-voltages-in-a-wire-or-component.-(AC-43.13-1B-11-
89)
Grounding-(5.5.5.5)---ans-✔✔Establishing-a-physical-wire-path-that-gives-electricity-a-
path-to-earth/ground.
Bonding-(5.5.5.5)---ans-✔✔Connection-of-non-current-carrying-conductive-elements-ie.-
enclosures-and-structures.
Conductor-plating-(5.5.5.1)---ans-✔✔Copper-wire-plated-with-Tin,-Silver,-or-Nickel.-Tin-is-
the-most-common.-wire-plating-has-a-slower-oxidation-rate-than-bare-copper.
Voltage-drop-in-wires-(5.5.5.1)---ans-✔✔Should-not-exceed-2%-of-the-regulated-voltage-
when-the-generator-is-carrying-rated-current-or-the-battery-is-being-discharged-at-5-
minute-rate.
The-allowable-voltage-drop-in-a-28-volt-continuous-circuit-is:
a.-1-volt-
b.-2-volts
c.-5-volts
d.-4-volts---ans-✔✔a.-1-volt
Voltage-rating-(5.5.5.1)---ans-✔✔The-voltage-rating-of-a-cable-is-the-highest-voltage-that-
may-be-continuously-applied-to-a-completed-cable-construction-in-compliance-with-the-
relevant-cable-standard-or-specification
Shielded-wire-(5.5.5.1)---ans-✔✔Electrical-wire-that-is-enclosed-in-a-braided-metal-jacket.-
Electromagnetic-energy-radiated-from-the-wire-is-trapped-by-the-braid-and-is-carried-to-
ground.
Receiving-Inspection-(5.4.1.1)---ans-✔✔ensure-that-incoming-parts-are-checked-against-
purchase-orders,-manufacturers-specifications,-drawings-and-dimensions-and-other-
available-documentation-to-CONFIRM-AUTHENTICITY-of-the-material.-Conformance-to-
applicable-technical-standards-will-be-verified.-Incoming-material-must-be-separated-from-
previously-inspected-material
cable-(5.5.5.1)---ans-✔✔A-bundle-of-wires-covered-by-rubber-or-plastic-along-which-an-
electric-current-can-pass.
New-Equipment-Acceptance-(5.4.1)---ans-✔✔Receiving-inspection,-physical-condition,-
inventory-of-equipment-and-accessories-for-installation
, Visual-inspections-(5.4.1.2)---ans-✔✔New-parts-will-be-visually-inspected-to-confirm-the-
PN-and-SN,-the-part-markings,-and-general-condition.-All-parts/components-must-be-
accompanied-by-documents-the-CLEARY-INDICATE-APPROVED/ACCEPTABLE-
SOURCE.
Suspected-Unapproved-Parts-(SUP)---ans-✔✔Red-Tagged---Placed-in-quarantine---
report-using-FAA-Form-8120-11.-Ref.-AC-21-29.
Direct-Marking-(5.5.5.3)-1---ans-✔✔Several-different-methods-can-be-used-to-mark-
directly-on-the-wire:-hot-stamp-marking,-ink-jet-printers,-and-laser-jet-printers.-The-hot-
stamp-method-can-damage-the-insulation-of-a-newer-type-of-wire-that-utilizes-thin-
insulators.
Indirect-Marking-(5.5.5.3)-2---ans-✔✔Identification-sleeves-can-be-used-if-direct-marking-
on-the-wire-is-not-possible.-Indirectly-marked-wire-or-cable-should-be-identified-with-
printed-sleeves-at-each-end-and-at-intervals-not-longer-than-6-feet.-The-individual-wires-
inside-a-cable-should-be-identified-within-3-inches-of-their-termination
Wire-Identification-(5.5.5.3)---ans-✔✔All-wire-used-on-aircraft-must-have-its-type-
identification-imprinted-along-its-length.-It-is-common-practice-to-follow-this-part-number-
with-the-five-digit/letter-Commercial-and-Government-Entity-(CAGE)-code-identifying-the-
wire-manufacturer.-You-can-identify-the-performance-capabilities-of-existing-installed-wire-
you-need-to-replace,-and-avoid-the-inadvertent-use-of-a-lower-performance-and-
unsuitable-replacement-wire.
Wire-Identification-Requirements-(5.5.5.3)---ans-✔✔Identification-markings-should-be-
placed-at-each-end-of-the-wire-and-at-15-inch-maximum-intervals-along-the-length-of-the-
wire.-Wires-less-than-3-inches-in-length-need-not-be-identified.-Wires-3-to-7-inches-in-
length-should-be-identified-approximately-at-the-center.-Added-identification-marker-
sleeves-should-be-located-so-that-ties,-clamps,-or-supporting-devices-need-not-be-
removed-to-read-the-identification.-The-wire-identification-code-must-be-printed-to-read-
horizontally-from-left-to-right)-or-vertically-(from-top-to-bottom)
Performance-Standards---Technical-Standard-Order-TSO-(5.3.6.3)---ans-✔✔Minimum-
performance-standard-for-specified-materials,-parts-and-appliances-used-on-civil-aircraft.-
TSO-authorization-IS-NOT-an-approval-to-install-in-aircraft,-only-authorization-to-
manufacture-part-or-material.
Performance-Standards---Parts-Manufacturer-Approval-PMA-(5.3.6.3)---ans-✔✔PMA-
production-approval-allows-you-to-produce-and-sell-FAA-approved-aircraft-articles-that-
are-eligible-for-installation-on-FAA-Type-Certificated-Products.
schematic-diagram-(5.3.8.2)-installation-wire-diagrams---ans-✔✔A-schematic-diagram-is-
used-to-illustrate-a-principle-of-operation,-and-therefore-does-not-show-parts-as-they-
actually-appear-or-function.-However,-schematic-diagrams-do-indicate-the-location-of-
components-with-respect-to-each-other.-Schematic-diagrams-are-best-utilized-for-
troubleshooting.
Preservation-and-Storage-of-Aviation-Parts-(5.4.1)---ans-✔✔Articles-stored-for-installation-
on-civil-aircraft-or-awaiting-customer-disposition-shall-be-stored-or-preserved-IAW-
manufacturers-recommendations-or-other-government/industry-practices-designed-to-
provide-maximum-protection-from-damage-or-deterioration.
Preliminary-Inspection-(5.4.2.1)---ans-✔✔visually-inspect-all-items-for-physical-damage,-
ensure-all-necessary-and-current-information-and-specifications-are-available.
Record-Keeping---ans-✔✔The-Work-Order-Form
