Export Control
EAR Export Classification: Not subject to the EAR per 15 C.F.R. Chapter 1, Part 734.3(b)(3), except for the following Service Bulletins which are currently published as EAR Export Classification 9E991: SBE70-0992, SBE72-0483, SBE72-0580, SBE72-0588, SBE72-0640, SBE73-0209, SBE80-0024 and SBE80-0025.Copyright
© IAE International Aero Engines AG (2001, 2014 - 2021) The information contained in this document is the property of © IAE International Aero Engines AG and may not be copied or used for any purpose other than that for which it is supplied without the express written authority of © IAE International Aero Engines AG. (This does not preclude use by engine and aircraft operators for normal instructional, maintenance or overhaul purposes.).Applicability
All
Common Information
TASK 23-44-41-300-004 Maintenance Interphone Jack Cable - Replace The Ties, Repair-004 (VRS2969)
General
Lace the wire bundles together tightly. All the breakouts from the harnesses must be in the same plane as the bundle center line (Refer to Figure). Keep the wires in the harness as straight as possible and make sure that the wires are not twisted. When the harness is more than 1.5 in. (38.1 mm) in diameter it must be laced two times at each position.
To identify the consumable materials, refer to the PCI.
Preliminary Requirements
Pre-Conditions
NONESupport Equipment
NONEConsumables, Materials and Expendables
| Name | Manufacturer | Part Number / Identification | Quantity | Remark |
|---|---|---|---|---|
| CoMat 02-018 BRUSH, PAINT | LOCAL | CoMat 02-018 | ||
| CoMat 02-159 LACING TAPE | LOCAL | CoMat 02-159 | ||
| CoMat 02-184 LACING TAPE | LOCAL | CoMat 02-184 | ||
| CoMat 07-084 SILICONE VARNISH | LOCAL | CoMat 07-084 |
Spares
NONESafety Requirements
NONEProcedure
Make a note of the position of the different ties: the general ties, the ties which identify the positions of the general clamps, the ties which identify the positions of the datum clamps and the ties at the connection of two wire bundles.
Remove the ties which are damaged, or those necessary to give access to damaged cables.
Refer to Figure.
Use the CoMat 02-159 LACING TAPE to tie the wire bundles. Put the ties not more than 2.0 in. (50.8 mm) apart.
Replace the general ties (if it is necessary).
Use the CoMat 02-184 LACING TAPE to tie the wire bundles on the general clamp position.
Use the CoMat 02-159 LACING TAPE to tie the wire bundles approximately 1.0 in. (25.4 mm) from the center of the general clamp position.
Replace the ties at a general clamp position (if it is necessary).
Use CoMat 02-184 LACING TAPE to tie the wire bundles.
Put the ties approximately 0.335 in. (8.5 mm) from the center of the datum clamp position.
Replace the ties at a datum clamp position (if it is necessary).
Refer to Figure.
Make a clove hitch around the No. 1 bundle (step 1). Pull each end of the tape so that the knot is tight.
Pull the end A away from the lacing C that holds the No. 1 and No. 2 bundles together.
Look in the direction of the arrow D. Wind the end B around the No. 2 bundle in a counterclockwise direction for one turn. Put the end of the tape between the No. 1 and No. 2 bundles. Continue to wind the tape around the No. 1 bundle in a clockwise direction for one turn. Make sure that the end B is above the end A (step 2).
Do again Step above until you wind the bundles six times (step 3).
Pull the end B after each wind so that the lacing is tight.
Use a blunt tool to make a clearance between the No. 1 and No. 2 bundles. Wind the end A around the six laces and between the No. 1 and No. 2 bundles. Do this in a counterclockwise direction for one turn. Wind the end B around the six laces and between the No. 1 and No. 2 bundles. Do this in a clockwise direction for one turn (step 4).
Do again Step above until you wind the laces three times (step 5).
Pull the ends of the tape after each wind so that the lacing is tight.
Complete the lacing with a square knot (step 6).
Use the CoMat 02-159 LACING TAPE to tie the wire bundles. Start the procedure at a point between the No. 1 and the No. 2 bundles and do the steps which follow:
Replace the ties at the connection of two wire bundles (if it is necessary).
SUBTASK 23-44-41-350-051 Replace the Ties
Make sure that the repaired area has no damage and that it agrees with the repair instruction.
Examine the repair area.
SUBTASK 23-44-41-220-053 Examine the Repair Area
Use the CoMat 02-018 BRUSH, PAINT and the CoMat 07-084 SILICONE VARNISH. Apply the varnish to the knot of each of the ties.
When the varnish is dry, cut off the two ends of the ties approximately 0.35 in. (8.9 mm) from the knot.
Seal the ties.
SUBTASK 23-44-41-380-051 Seal the Ties
WARNING
KEEP FLAMES AND ELECTRICAL EQUIPMENT WHICH IS NOT FLAMEPROOF AWAY FROM THE WORK AREA. THE SILICONE VARNISH IS FLAMMABLE.DO NOT GET THE SILICONE VARNISH ON YOUR SKIN OR IN YOUR EYES. PUT ON PROTECTIVE CLOTHING, GLOVES, GOGGLES AND A MASK. USE THE VARNISH IN A WELL VENTILATED AREA. DO NOT BREATHE THE GAS. IF YOU GET THE VARNISH ON YOUR SKIN OR IN YOUR EYES, GET MEDICAL HELP IMMEDIATELY.Use a permanent marking pen.
Put the repair scheme number VRS2969 on the identification sleeve of the harness, adjacent to the part number.
SUBTASK 23-44-41-850-051 Put the Repair Scheme Number on the Harness
Figure: Harness breakouts
Harness breakouts
Figure: Details of the harness ties
Details of the harness ties
Figure: Harness ties at the clamp positions
Harness ties at the clamp positions
Figure: Harness ties at the connection of two wire bundles
Harness ties at the connection of two wire bundles
