Installation of the Upper and/or Lower Locator(s) [CFML]

TASK 71-13-18-400-801-A
Installation of the Upper and/or Lower Locator(s)

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

CAUTION: DO NOT EXTEND THE SLATS WHEN THE FAN COWLS AND THE THRUST REVERSER COWLS ARE OPEN. IF YOU DO THIS, DAMAGE TO THE AIRCRAFT CAN OCCUR.

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	MACHINE - DRILLING
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.395 and 0.282 m.daN (34.96 and 24.96 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CPNCL00700)	ELECTRICAL BONDING COATING (BLUE COLOR)
(Material No.CPNCL01027)	TWO PART PASTE ADHESIVE (HYSOL EA 9394)
(Material No.CPNCL01237)	Polysulfide Sealant - General Purpose Interfay
(Material No.CPNCL01420)	SEALANT LOW DENSITY-FUEL TANK & GP
(Material No.CPNCL02069)	LINT-FREE COTTON CLOTH
(Material No.CPNCL02159)	EPOXY PREPREG CARBON FABRIC (AGP 193-PW 8552RC40)
(Material No.CPNCL02589)	GENERAL CLEANING AGENT - MULTI PURPOSE

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
2	NUTS	AIPC 71-13-10-15-020
6	NUTS	AIPC 71-13-10-16-020
10	NUTS	AIPC 71-13-11-16-020
14	NUTS	AIPC 71-13-11-17-020

E. Referenced Information

REFERENCE	DESIGNATION
TASK 20-28-00-912-802-A	Electrical Bonding - General Maintenance Procedure
TASK 71-13-00-010-803-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A	Closing of the Fan Cowl Doors
Upper and Lower Locators (RH / LH sides)

3. Job Set-up
Subtask 71-13-18-941-051-A

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:

The ENG/MODE selector switch
The ENG/MASTER 1(2) control switch.

(2) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).

Subtask 71-13-18-010-051-A

B. Get Access
(1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position.

4. Procedure
Subtask 71-13-18-320-050-A

A. If removed, prepare for the installation of the upper locator, LH/RH sides.
(1) Temporarily put the upper locator (1) or (9) in position on the fan cowl door.
(2) Use a MACHINE - DRILLING to transfer the existing holes from the fan cowl door to the upper locator (1) or (9).
(3) Use a MACHINE - DRILLING to drill holes in the upper locator (1) or (9) to 4.815 mm (0.190 in.) and 4.863 mm (0.191 in.).
(4) Remove the burrs after the drilling operation.

Subtask 71-13-18-320-051-A

B. If removed, prepare for the installation of the lower locator, LH/RH sides.
(1) Temporarily put the lower locator (5) or (13) in position on the fan cowl door.
(2) Use a MACHINE - DRILLING to transfer the existing holes from the fan cowl door to the lower locator (5) or (13).
(3) Use a MACHINE - DRILLING to drill holes in the lower locator (5) or (13) to 4.815 mm (0.190 in.) and 4.863 mm (0.191 in.).
(4) Remove the burrs after the drilling operation.

Subtask 71-13-18-420-050-A

C. Installation of the Upper Locator, LH/RH Sides
(1) Clean the upper locator (1) or (9) and the mating surfaces of the fan cowl door. Use GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and a LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
(2) Do a visual inspection of the liquid shim.

If the liquid shim is damaged, do Steps (a) thru (i).

(a) Remove the liquid or liquid/solid shim from the mating surface of the fan cowl door.
(b) Clean the upper locator (1) or (9) and mating surfaces of the fan cowl door. Use GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
(c) Temporarily install the upper locator (1) or (9) on the fan cowl door. Use the bolts (4) or (12), washers (3) or (11) and the new AIPC 71-13-10-15-020 NUTS (2) or the new AIPC 71-13-11-16-020 NUTS (10).
(d) Measure and record the maximum distance between the upper locator (1) or (9) and the fan cowl door.
(e) Remove the upper locator (1) or (9) with the bolts (4) or (12), washers (3) or (11) and the new AIPC 71-13-10-15-020 NUTS (2) or the new AIPC 71-13-11-16-020 NUTS (10). from the fan cowl door.
(f) Apply a liquid or liquid/solid shim.
1 If the maximum distance recorded in Step (d) is 0.50 mm (0.020 in.) or less, apply a liquid shim of CPNCL01027TWO PART PASTE ADHESIVE (HYSOL EA 9394).

NOTE: Refer to the manufacturer's instructions.

2 If the maximum distance recorded in Step (d) is between 0.50 mm (0.020 in.) and 1.2 mm (0.047 in.), apply a liquid/solid shim of CPNCL01027TWO PART PASTE ADHESIVE (HYSOL EA 9394) and a solid shim of CPNCL02159EPOXY PREPREG CARBON FABRIC (AGP 193-PW 8552RC40).

NOTE: Refer to the manufacturer's instructions.

3 A clearance greater than 1.2 mm (0.047 in.) is not permitted.
(g) Temporarily install the upper locator (1) or (9) on the right fan cowl. Use the bolts (4) or (12), washers (3) or (11) and the new AIPC 71-13-10-15-020 NUTS (2)or the new AIPC 71-13-11-16-020 NUTS (10).
(h) Let the sealant cure. Refer to the manufacturer's instructions for the cure time.
(i) Remove the upper locator (1) or (9) with the bolts (4) or (12), washers (3) or (11) and the new AIPC 71-13-10-15-020 NUTS (2) or the new AIPC 71-13-11-16-020 NUTS (10) from the fan cowl door.
(3) Apply a thin layer of Polysulfide Sealant - General Purpose Interfay (Material No.CPNCL01237) on the mating surfaces of the upper locator (1) or (9).
(4) Carefully put the upper locator (1) or (9) in position on the fan cowl door.
(5) Let the sealant cure. Refer to the manufacturer's instructions for the cure time.
(6) Install the upper locator (1) or (9) with the bolts (4) or (12), washers (3) or (11) and the new AIPC 71-13-10-15-020 NUTS (2) or the new AIPC 71-13-11-16-020 NUTS (10).
(7) Wet-install the fasteners with Polysulfide Sealant - General Purpose Interfay (Material No.CPNCL01237) .
(8) TORQUE the bolts (4) or (12) to between 0.395 and 0.282 m.daN (34.96 and 24.96 lbf.in )

.
(9) Remove the unwanted sealant with a GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
(10) Apply SEALANT LOW DENSITY-FUEL TANK & GP (Material No.CPNCL01420) and CPNCL00700ELECTRICAL BONDING COATING (BLUE COLOR) (two contact points) (Ref. AMM TASK 20-28-00-912-802).

Subtask 71-13-18-420-051-A

D. Installation of the Lower Locator, LH/RH Sides
(1) Clean the lower locator (5) or (13) and mating surfaces of the fan cowl door. Use GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and a LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
(2) Do a visual inspection of the liquid shim.

If the liquid shim is damaged, do Steps (a) thru (i).

(a) Remove the liquid or liquid/solid shim from the mating surface of the fan cowl door.
(b) Clean the lower locator (5) or (13) and mating surfaces of the fan cowl door. Use GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
(c) Temporarily install the lower locator (5) or (13) on the fan cowl door. Use the bolts (8) or (16), washers (7) or (15) and the new AIPC 71-13-10-16-020 NUTS (6) or the new AIPC 71-13-11-17-020 NUTS (14).
(d) Measure and record the maximum distance between the lower locator (5) or (13) and fan cowl door.
(e) Remove the lower locator (5) or (13) with the bolts (8) or (16), washers (7) or (15) and the new AIPC 71-13-10-16-020 NUTS (6) or the new AIPC 71-13-11-17-020 NUTS (14) from the fan cowl door.
(f) Apply a liquid or liquid/solid shim.
1 If the maximum distance recorded in Step (d) is 0.50 mm (0.020 in.) or less, apply a liquid shim of CPNCL01027TWO PART PASTE ADHESIVE (HYSOL EA 9394).

NOTE: Refer to the manufacturer's instructions.

3 A clearance greater than 1.2 mm (0.047 in.) is not permitted.
(g) Temporarily install the lower locator (5) or (13) on the right fan cowl. Use the bolts (8) or (16), washers (7) or (15) and the new AIPC 71-13-10-16-020 NUTS (6) or the new AIPC 71-13-11-17-020 NUTS (14).
(h) Let the sealant cure. Refer to the manufacturer's instructions for the cure time.
(i) Remove the lower locator (5) or (13) with the bolts (8) or (16), washers (7) or (15) and the new AIPC 71-13-10-16-020 NUTS (6) or the new AIPC 71-13-11-17-020 NUTS (14) from the fan cowl.
(3) Apply a thin layer Polysulfide Sealant - General Purpose Interfay (Material No.CPNCL01237) on the mating surfaces of the lower locator (5) or (13).
(4) Carefully put the lower locator (5) or (13) in position on the fan cowl door.
(5) Let the sealant cure. Refer to the manufacturer's instructions for the cure time.
(6) Install the lower locator (5) or (13) with the bolts (8) or (16), washers (7) or (15) and the new AIPC 71-13-10-16-020 NUTS (6) or the new AIPC 71-13-11-17-020 NUTS (14).
(7) Wet-install the fasteners with Polysulfide Sealant - General Purpose Interfay (Material No.CPNCL01237) .
(8) TORQUE the bolts (8) or (16) to between 0.395 and 0.282 m.daN (34.96 and 24.96 lbf.in )

.
(9) Remove the unwanted sealant with GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
(10) Apply SEALANT LOW DENSITY-FUEL TANK & GP (Material No.CPNCL01420) and CPNCL00700ELECTRICAL BONDING COATING (BLUE COLOR) (two contact points) (Ref. AMM TASK 20-28-00-912-802).

5. Close-up
Subtask 71-13-18-410-050-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.02 06:33:21 UTC