Installation of the Forward Fan Cowl Door Hold Open Rods (HOR) [PW11]

TASK 71-13-08-400-801-A
Installation of the Forward Fan Cowl Door Hold Open Rods (HOR)

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

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

WARNING: WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.

ZONE: 400
FIN: 1421KM ** ON A/C NOT FOR ALL
FIN: 1422KM ** ON A/C NOT FOR ALL

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 1M (3 FT)-ADJUSTABLE
No specific	Torque wrench: range to between 50 and 45 lbf.in (0.57 and 0.51 m.daN )
No specific	Torque wrench: range to between 105 and 95 lbf.in (1.19 and 1.07 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.PU5-0005)	anti-seize compound

C. Work Zones and Access Panels

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

D. Referenced Information

REFERENCE	DESIGNATION
TASK 70-30-00-918-803-A	Consumable Materials Index for the Nacelle (UTC Aerospace Systems)
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A	Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A	Closing of the Fan Cowl Doors
Forward Fan Cowl Door Hold Open Rod (HOR)

3. Job Set-up
Subtask 71-13-08-941-051-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).

Subtask 71-13-08-010-051-A ** ON A/C NOT FOR ALL

B. Get Access
(1) Make sure that the fan cowl-doors are open (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR
(2) Make sure that the ACCESS PLATFORM 1M (3 FT)-ADJUSTABLE is in position.

4. Procedure

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

Subtask 71-13-08-420-050-A ** ON A/C NOT FOR ALL

WARNING: MAKE SURE THAT THE FAN COWL DOOR IS SUFFICIENTLY SUPPORTED DURING REMOVAL OR INSTALLATION. THE FAN COWL DOOR WEIGHS APPROXIMATELY 100 LBS (45.5 KG). IF IT IS NOT SUFFICIENTLY SUPPORTED, INJURY TO PERSONNEL AND/OR DAMAGE TO THE COMPONENTS CAN OCCUR.

A. Installation of the Forward Fan Cowl Door Hold Open Rods (HOR)

NOTE: There is one forward HOR on each fan cowl door. This procedure is for the installation of the forward HOR on the left fan cowl door. The procedure for the installation of the forward HOR on the right fan cowl door is the same.

(1) Removal of the protection covers:

CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.

(a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.
(2) Apply a layer of the anti-seize compound (Material No.PU5-0005) or equivalent (Ref. AMM TASK 70-30-00-918-803) to the threads of the bolts (2) and (6) and the nuts (5) and (9).
(3) Install the forward HOR (1) on the fan cowl door. Use the bolt (2), the bushing (3), the two washers (4) and the nut (5).
(4) TORQUE the nuts (5) to between 105 and 95 lbf.in (1.19 and 1.07 m.daN )

.
(5) Install the forward HOR on the engine case. Use the bolt (6), bushing (7), washer (8) and nut (9).
(6) TORQUE the nuts (9) to between 50 and 45 lbf.in (0.57 and 0.51 m.daN )

5. Close-up
Subtask 71-13-08-410-050-A ** ON A/C NOT FOR ALL

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 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(3) Remove the access platform(s).
(4) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 12:57:26 UTC