Installation of the RWD Guide Ramp Protector (RH/LH) [CFML]

TASK 71-13-16-400-802-A
Installation of the RWD Guide Ramp Protector (RH/LH)

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	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.37 and 0.28 m.daN (32.74 and 24.78 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CPNCL00338)	MASTINOX D40
(Material No.CPNCL01237)	Polysulfide Sealant - General Purpose Interfay
(Material No.CPNCL02069)	LINT-FREE COTTON CLOTH
(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
10	NUT	AIPC 71-13-10-13-040
12	COTTER PIN	AIPC 71-13-11-13-050
9	NUT	AIPC 71-13-11-14-040
11	COTTER PIN	AIPC 71-13-11-14-050

E. Referenced Information

REFERENCE	DESIGNATION
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
TASK 78-30-00-040-807-A	Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU)
TASK 78-30-00-440-807-A	Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU)
RWD Guide Ramp Protector (RH/LH)

3. Job Set-up
Subtask 71-13-16-941-060-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 71-13-16-010-064-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

Subtask 71-13-16-040-051-A

C. Deactivation of the Thrust Reverser System for Maintenance

WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.

(1) Make sure that you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-807).

4. Procedure
Subtask 71-13-16-420-056-A

A. Installation of the RWD Guide Ramp Protector, Left Hand (LH) Side and Right Hand (RH) Side
(1) Clean the RWD guide ramp protector (1) or (2) and mating surfaces of the fan cowl door.
(a) Use GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
(2) Apply a thin layer of Polysulfide Sealant - General Purpose Interfay (Material No.CPNCL01237) on the mating surfaces of the RWD guide ramp protector (1) or (2).
(3) Carefully put the RWD guide ramp protector (1) or (2) in position on the RWD guide ramp (5) or (6).
(4) Let the sealant cure. Refer to the manufacturer's instructions for the cure time.
(5) Wet install the fasteners with Polysulfide Sealant - General Purpose Interfay (Material No.CPNCL01237) .
(a) Install the RWD guide ramp protector (1) or (2) with the bolt (3) or (4), washer (7) or (8) and the new AIPC 71-13-11-14-040 NUT (9) or the new AIPC 71-13-10-13-040 NUT (10).
(6) TORQUE the nut (9) or (10) to between 0.37 and 0.28 m.daN (32.74 and 24.78 lbf.in )

.
(7) Installation of the cotter pin

WARNING: USE PROTECTIVE GOGGLES WHEN YOU REMOVE OR INSTALL A COTTER PIN. EACH TIME YOU REMOVE A COTTER PIN DURING THE TASK, DISCARD IT IMMEDIATELY. A LOOSE COTTER PIN CAN CUT YOU OR MAKE YOU BLIND.

(a) Safety the nut (9) or (10) with the new AIPC 71-13-11-14-050 COTTER PIN (11) or the new AIPC 71-13-11-13-050 COTTER PIN (12) .
(8) Brush seal the fasteners with MASTINOX D40 (Material No.CPNCL00338) .
(9) Remove the unwanted sealant with GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .

5. Close-up
Subtask 71-13-16-440-050-A

A. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-807).

Subtask 71-13-16-410-056-A

B. 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 WARNING NOTICE(S).

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