FAA Advisory Circular 43.13-1B
Acceptable Methods, Techniques, and Practices
Aircraft Inspection and Repair
AC 43.13-1B | 11. Aircraft Electrical Systems | 8. Wiring Installation Inspection Requirements | 11-100. Connectors
9/27/01
AC 43.13-1B CHG 1
i. Terminations should be made using
terminals of the proper size and the appropriate
terminal crimping tools.
11-99. FUSES AND FUSE HOLDERS.
Inspect as follows:
a. Check security of connections to fuse
holders.
b. Inspect for the presence of corrosion
and evidence of overheating on fuses and fuse
holders. Replace corroded fuses and clean
fuse holders. If evidence of overheating is
found, check for correct rating of fuse.
c. Check mounting security of fuse
holder.
d. Inspect for replenishment of spare
fuses used in flight. Replace with fuses of ap-
propriate current rating only.
so that tightening of the cable clamp adapter
cap provides sufficient grip on the wires to
keep tension from being applied to the con-
nector pins.
d. Make sure unused plugs and recep-
tacles are covered to prevent inclusion of dust
and moisture. Receptacles should have metal
or composite dust caps attached by their nor-
mal mating method. Plugs may have a dust
cap similar to above or have a piece of
polyolefin shrink sleeving shrunk over the
connector, starting from the backshell threads,
with a tail sufficiently long enough to double-
back over the connector and be tied with poly-
ester lacing tape behind the coupling nut. The
cable identification label should be visible be-
hind the connector or a tag should be attached
identifying the associated circuit or attaching
equipment. The connector should be attached
to structure by its normal mounting means or
by the use of appropriate clamps.
e. Inspect for exposed fuses susceptible
to shorting. Install cover of nonconducting
material if required.
11-100. CONNECTORS. Ensure reliability
of connectors by verifying that the following
conditions are met or that repairs are effected
as required.
a. Inspect connectors for security and
evidence of overheating (cause of over-heating
must be corrected), and exteriors for corrosion
and cracks. Also, wires leading to connectors
must be inspected for deterioration due to
overheating. Replace corroded connections
and overheated connectors.
b. Ensure installation of cable clamp
(reference MIL-C-85049) adapters on applica-
ble MS connectors, except those that are
moisture-proof.
e. Ensure that connectors are fully mated
by checking position and tightness of coupling
ring or its alignment with fully mated indicator
line on receptacle, if applicable.
f. Ensure that the coupling nut of MS
connectors is safetied, by wire or other me-
chanical locking means, as required by appli-
cable aircraft instructional manuals.
g. Ensure that moisture-absorbent ma-
terial is not used as “fill” for MS3057 clamps
or adapters.
h. Ensure that there is no evidence of
deterioration such as cracking, missing, or
disintegration of the potting material.
i. Identical connectors in adjacent loca-
tions can lead to incorrect connections. When
such installations are unavoidable, the attached
c. See that silicone tape is wrapped
around wires in MS3057 cable clamp adapters
Par 11-98
Page 11-47