Installation of the F1 Hinge Beam [CFML]

TASK 71-13-46-400-802-A
Installation of the F1 Hinge Beam

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.

ZONE: 400

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)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 1.79 and 1.38 m.daN (13.20 and 10.18 lbf.ft )
98N7110H003-000	1	FAN COWL PROTECTION BULLETS KIT

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.CPNCL00338)	MASTINOX D40
(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
400	POWER PLANT, NACELLES AND PYLONS
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
5	NUT	AIPC 71-13-80-01-110
6	PIN	AIPC 71-13-80-01-120

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
F1 Hinge Beam

3. Job Set-up
Subtask 71-13-46-941-053-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, and
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 71-13-46-010-053-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) is in position.

4. Procedure
Subtask 71-13-46-420-051-A

A. Installation of the F1 Hinge Beam
(1) On the left fan cowl, get access to the F1 hinge beam zone.
(2) If necessary, clean the F1 hinge beam (1) with GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) and LINT-FREE COTTON CLOTH (Material No.CPNCL02069) .
(3) Put the F1 hinge beam (1) in position.
(4) If available, use 98N7110H003-000 FAN COWL PROTECTION BULLETS KIT to attach the bullet thread protector (3) to the forward hinge bolt (2).
(5) Put one end of the F1 hinge beam (1) in position on the fan cowl forward hinge fitting (7) using the forward hinge bolt (2) equipped with bullet thread protector (3).
(6) Remove the bullet thread protector (3) from the forward hinge bolt (2).
(7) Install the washer (4) and the new AIPC 71-13-80-01-110 NUT (5) on the forward hinge bolt (2).
(8) TORQUE the nut (5) to between 1.79 and 1.38 m.daN (13.20 and 10.18 lbf.ft )

.
(9) Apply MASTINOX D40 (Material No.CPNCL00338) on the fasteners.

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.

(10) Safety the nut (5) with a new AIPC 71-13-80-01-120 PIN (6).
(11) Apply MASTINOX D40 (Material No.CPNCL00338) on the fasteners.
(12) Do Steps (1) thru (11) again for the right side.
(13) Remove the MAT - PROTECTIVE from the lateral zone of the fan case.

5. Close-up
Subtask 71-13-46-410-050-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 07:32:04 UTC