Inspect, Repair, and Secure Wiring Harness with Signs of Chafing
100268-00
Use the following procedure to inspect the wiring harness for chafing, security, and condition.
Applicable Aircraft Serial Numbers
All
Type of Maintenance
Line
Level of Certification
LSA-RM
Task Specific Training Required
No
Special Tools Required
None
Parts Required
None
Aircraft System and Number
03—Electrical System
Safety Equipment
As Needed
Consumables
HT 1/2 N-100 (WRAP, SPIRAL, NYLON, 1/2” OD)
F4 TAPE BLACK (TAPE, SELF-FUSING, SILICONE, .02 IN THK, 1 IN WIDE)
TY24MX (CABLE TIE, NYLON 6-6, 30LB, 5.50, TY-RAP)
TT-I-735A or equivalent (ISOPROPYL ALCOHOL)
Task Instructions
2. Inspect engine wire harness for clearance and wear contact against various locations of the wire harness on the engine. The engine wire harness must have minimum no touch clearance from any corner or sharp edge of the areas as per installed state.
3. If chaffing or nick damage to insulation of wires is found and has not damaged the copper wires, clean individual damaged wire insulation with ISOPROPYL ALCOHOL and wrap it using F4 TAPE. Then re-wrap entire bundle using F4 TAPE. Leave a minimum no touch clearance.
4. Using WRAP, SPIRAL, wrap any portions of the wire harness that may contact corners or sharp edges of the components as required.
5. Ensure ignition leads do not touch inner cowling with a minimum clearance of .25” (inch). Cut engine CABLE-TIEs and adjust/pull ignition wiring to the center of the engine and re-attach CABLE-TIEs as needed.
Verification Method
The task is completed when the fuselage and engine wire harness have been inspected and repaired as needed.
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