Installation of the Hold Open Rod Brackets [PW11]

TASK 71-13-86-400-801-A
Installation of the Hold Open Rod Brackets

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

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

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)
No specific	Torque wrench: range to between 75 and 65 lbf.in (0.85 and 0.73 m.daN )
No specific	Torque wrench: range to between 90 and 76 lbf.in (1.02 and 0.86 m.daN )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.PU1-0001)	lint-free cotton cloth
(Material No.PU2-0001)	alcohol, isopropyl
(Material No.PU3-0004)	sealant

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

3. Job Set-up
Subtask 71-13-86-941-051-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 71-13-86-010-051-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) is in position.

4. Procedure
Subtask 71-13-86-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Hold Open Rod (HOR) Brackets
(1) Install the LH HOR bracket assemblies.
(2) Install the fan cowl HOR bracket assembly (2) to the A-flange of the engine fan case.
(a) Clean the mating surface of the bracket assembly (2), bolts (1), washers (3) and nuts (4) with a clean lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl.
(b) Remove PU2-0001alcohol, isopropyl with a clean lint-free cotton cloth (Material No.PU1-0001) before the isopropyl alcohol becomes dry.
(c) Apply a layer of sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) under the head of the bolts (1), and mating surfaces of the washers (3) and nuts (4).
(d) Install the bracket assembly (2) in holes 91, 92 and 93 on the aft side of A-flange with three bolts (1), three washers (3) and three nuts (4).
(e) TORQUE the nuts (4) to between 90 and 76 lbf.in (1.02 and 0.86 m.daN )

.
(f) Make sure that there is sufficient sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) on the mating surfaces. Remove the unwanted sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) with a clean lint-free cotton cloth (Material No.PU1-0001) .
(g) Connect the forward HOR to the bracket assembly (2) on the A-flange of the engine fan case (Ref. AMM TASK 71-13-08-400-801).
(3) Install the fan cowl HOR bracket assembly (7) to the B-flange of the engine fan case.
(a) Remove the exiting bolt (6) and nut (8) from hole 107 on the B-flange.
(b) Clean the mating surfaces of the bracket assembly (7), bolts (5) and (6), washers (10) and nuts (8) and (9) with a clean lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl.
(c) Remove PU2-0001alcohol, isopropyl with a clean lint-free cotton cloth (Material No.PU1-0001) before the isopropyl alcohol becomes dry.
(d) Apply a layer of sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) under the head of the bolts (5) and (6), and mating surfaces of washers (10) and nuts (8) and (9).
(e) Install the bracket assembly (7) in holes 106 and 107 on the aft side of the B-flange with the bolts (5) and (6), two washers (10) and nuts (8) and (9).
(f) TORQUE the nut (8) to between 75 and 65 lbf.in (0.85 and 0.73 m.daN )

.
(g) TORQUE the nut (9) to between 90 and 76 lbf.in (1.02 and 0.86 m.daN )

.
(h) Make sure there is sufficient sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) on the mating surfaces. Remove unwanted sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) with a clean lint-free cotton cloth (Material No.PU1-0001) .
(4) Install the thrust reverser HOR bracket assembly (13) to the B-flange of the engine fan case.
(a) Remove the existing bolt (12) and nut (14) from hole 98 on the B-flange.
(b) Clean the mating surfaces of the bracket assembly (13), bolts (11) and (12), washers (16) and nuts (14) and (15) with a clean lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl.
(c) Remove PU2-0001alcohol, isopropyl with a clean lint-free cotton cloth (Material No.PU1-0001) before the isopropyl alcohol becomes dry.
(d) Apply a layer of sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) under the head of the bolts (11) and (12), and mating surfaces of washers (16) and nuts (14) and (15).
(e) Install the bracket assembly (13) in holes 97 and 98 on the aft side of the B-flange with the bolts (11) and (12), two washers (16) and nuts (14) and (15).
(f) TORQUE the nut (14) to between 75 and 65 lbf.in (0.85 and 0.73 m.daN )

.
(g) TORQUE the nut (15) to between 90 and 76 lbf.in (1.02 and 0.86 m.daN )

.
(h) Make sure there is sufficient sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) on the mating surfaces. Remove unwanted sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) with a clean lint-free cotton cloth (Material No.PU1-0001) .
(5) Install the RH hold open rod (HOR) bracket assemblies.
(6) Install the fan cowl HOR bracket assembly (27) to the A-flange of the engine fan case.
(a) Clean the mating surface of the bracket assembly (27), bolts (28), washers (26) and nuts (25) with a clean lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl.
(b) Remove PU2-0001alcohol, isopropyl with a clean lint-free cotton cloth (Material No.PU1-0001) before the isopropyl alcohol becomes dry.
(c) Apply a layer of sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) under the head of the bolts (28), and mating surfaces of the washers (26) and nuts (25).
(d) Install the bracket assembly (27) in holes 31, 32 and 33 on the aft side of A-flange with three bolts (28), three washers (26) and three nuts (25).
(e) TORQUE the nuts (25) to between 90 and 76 lbf.in (1.02 and 0.86 m.daN )

.
(f) Make sure that there is sufficient sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) on the mating surfaces. Remove the unwanted sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) with a clean lint-free cotton cloth (Material No.PU1-0001) .
(g) Connect the forward HOR to the bracket assembly (27) on the A-flange of the engine fan case (Ref. AMM TASK 71-13-08-400-801).
(7) Install the fan cowl HOR bracket assembly (31) to the B-flange of the engine fan case.
(a) Clean the mating surfaces of the bracket assembly (31), bolts (32), washers (30) and nuts (29) with a clean lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl.
(b) Remove PU2-0001alcohol, isopropyl with a clean lint-free cotton cloth (Material No.PU1-0001) before the isopropyl alcohol becomes dry.
(c) Apply a layer of sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) under the head of the bolts (32), and mating surfaces of washers (30) and nuts (29).
(d) Install the bracket assembly (27) in holes 29 and 30 on the aft side of the B-flange with two bolts (32), two washers (30) and two nuts (29).
(e) TORQUE the nut (29) to between 90 and 76 lbf.in (1.02 and 0.86 m.daN )

.
(f) Make sure there is sufficient sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) on the mating surfaces. Remove unwanted sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) with a clean lint-free cotton cloth (Material No.PU1-0001) .
(8) Install the thrust reverser HOR bracket assembly (33) to the B-flange of the engine fan case.
(a) Clean the mating surfaces of the bracket assembly (31), bolts (32), washers (30) and nuts (29) with a clean lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl.
(b) Remove PU2-0001alcohol, isopropyl with a clean lint-free cotton cloth (Material No.PU1-0001) before the isopropyl alcohol becomes dry.
(c) Apply a layer of sealant (Material No.PU3-0004) or equivalent (Ref. AMM TASK 70-30-00-918-803) under the head of the bolts (32), and mating surfaces of washers (30) and nuts (29).
(d) Install the bracket assembly (33) in holes 37 and 38 on the aft side of the B-flange with two bolts (32), two washers (30) and two nuts (29).
(e) TORQUE the nut (29) to between 90 and 76 lbf.in (1.02 and 0.86 m.daN )

5. Close-up
Subtask 71-13-86-410-050-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 02:32:56 UTC