Removal of the Seal at Pylon Rib 5

TASK 54-52-11-000-004-A
Removal of the Seal at Pylon Rib 5

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

ZONE: 410
ZONE: 420

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)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.05JBC9)	Contact Adhesive-Rubber & Plastic Bonding Neoprene base -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
410	ENG 1 PYLON BOX AND FORWARD FAIRING
420	ENG 2 PYLON BOX AND FORWARD FAIRING
413AL, 423AL
414AR, 424AR
413AR, 423AR

D. Referenced Information

REFERENCE	DESIGNATION
TASK 54-52-11-000-002-A	Removal of the Access Panels
TASK 54-52-11-000-002-B	Removal of the Access Panels
TASK 78-30-00-040-013-A	Deactivation of the Thrust Reverser System for Flight
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
location of the Seal at Pylon Rib 5 ** ON A/C NOT FOR ALL
location of the Seal at Pylon Rib 5 ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 54-52-11-941-053-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put the WARNING NOTICE(S) in position to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put the WARNING NOTICE(S) in position to tell persons not to energize the FADEC 1(2).

Subtask 54-52-11-040-055-A ** ON A/C NOT FOR ALL

B. Deactivation of the Thrust Reverser

WARNING: MAKE THE THRUST REVERSER UNSERVICEABLE. IF THE THRUST REVERSER IS NOT MADE UNSERVICEABLE, IT CAN OPERATE ACCIDENTALLY BECAUSE THE BLOCKER DOOR HOLD-OPEN ROD DOES NOT RESIST THE ACTUATOR HYDRAULIC PRESSURE. THIS CAN CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO EQUIPMENT.

(1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041).

Subtask 54-52-11-040-055-B ** ON A/C NOT FOR ALL

B. Deactivation of the Thrust Reverser

(1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-013).

Subtask 54-52-11-010-052-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove access panels 413AL, 414AR, 423AL and 424AR
(Ref. AMM TASK 54-52-11-000-002).

Subtask 54-52-11-010-052-B ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove access panels 413AL, 413AR, 423AL and 423AR
(Ref. AMM TASK 54-52-11-000-002).

4. Procedure
Subtask 54-52-11-020-053-A ** ON A/C NOT FOR ALL

A. Removal of the Seal

location of the Seal at Pylon Rib 5 ** ON A/C NOT FOR ALL

(1) Use the sharp non-metallic spatula to remove the remaining Contact Adhesive-Rubber & Plastic Bonding Neoprene base - (Material No.05JBC9) .
(2) Disengage the seal (1).

[Rev.10 from 2021] 2026.04.01 12:50:47 UTC