Inspection for Missing Fasteners on the Pylon Fairing Panels

TASK 54-50-00-200-003-A
Inspection for Missing Fasteners on the Pylon Fairing Panels

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	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
400	POWER PLANT, NACELLES AND PYLONS

C. Referenced Information

REFERENCE	DESIGNATION
TASK 78-30-00-040-012-A	Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-081-041-A	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-081-041-B	Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-440-012-A	Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-30-00-481-041-A	Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-30-00-481-041-B	Make the Thrust Reverser Unserviceable for Maintenance
Fairing Panels - Right Pylon ** ON A/C NOT FOR ALL
Fairing Panels - Right Pylon ** ON A/C NOT FOR ALL
Fairing Panels - Right Pylon ** ON A/C NOT FOR ALL
Fairing Panels - Left Pylon ** ON A/C NOT FOR ALL
Fairing Panels - Left Pylon ** ON A/C NOT FOR ALL
Fairing Panels - Left Pylon ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 54-50-00-941-057-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overheat maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC.

Subtask 54-50-00-040-052-A ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).

Subtask 54-50-00-040-052-C ** ON A/C NOT FOR ALL

B. Aircraft Maintenance Configuration
(1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-040-012).

Subtask 54-50-00-010-054-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
(a) For the left pylon, in zone 410
(b) For the right pylon, in zone 420.

4. Procedure
Subtask 54-50-00-210-055-A ** ON A/C NOT FOR ALL

A. Inspection

Fairing Panels - Right Pylon ** ON A/C NOT FOR ALL

Fairing Panels - Left Pylon ** ON A/C NOT FOR ALL

(1) Inspect the pylon fairing panels for missing fasteners.
(a) Panels with one missing fastener are permitted, in the conditions that follow:

No missing fastener permitted on the forward edge of the panel.
At the start of each row, from the forward edge of the panel, the two first fasteners must not be missing.

(2) Install the missing fasteners until the end of 10 flight cycles.

5. Close-up
Subtask 54-50-00-440-052-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).

Subtask 54-50-00-440-052-C ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-440-012).

Subtask 54-50-00-410-053-A ** ON A/C NOT FOR ALL

B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 01:59:05 UTC