C. How To Locate Spare Wires Within A Wire Bundle
(a) As an example, use wire bundle W487.
(b) Knowing the wire bundle, refer to the Wire List in Chapter 91.
(c) Using Self Indexing Wire List shown, locate wire bundle W487. In the "DIAGRAM’ column you will
find the wires that are spare wires are labeled "SPARE".
(d) On the same line as the wire number, both end terminations will be indicated for all spare wires.
(Check applicable airplane effectivity under the effectivity column.) Ground, Terminal Strip,
Splice, and Hook-Up Lists will also show spare wires.
(e) Spare wires are not shown on the wiring diagrams, only Airline Reserved Wires are shown,
which are reserved for customer modifications.
(f) Wires that become spare through an engineering change are identified by "SPARE" and are not
part of the Customer spares equipment. Their use should be on an individual airplane basis