General Visual Inspection of MLG-Well and Hydraulic Compartment (EWIS)

TASK 05-21-40-200-005-A
General Visual Inspection of MLG-Well and Hydraulic Compartment (EWIS)

ZONE: 147
ZONE: 148

1. Reason for the Job
Refer to the MPD TASK: ZL-147-03
GENERAL VISUAL INSPECTION OF MLG-WELL AND HYDRAULIC COMPARTMENT (EWIS)

NOTE: This is an EWIS (Electrical Wiring Interconnection System) procedure. EWIS is defined in ESPM 20-33-11.

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	1	FLASHLIGHT
No specific	1	MIRROR - INSPECTION

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
147	MAIN GEAR WELL AND HYDRAULIC COMPARTMENT
148	MAIN GEAR WELL AND HYDRAULIC COMPARTMENT
147AB, 147EB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 32-12-00-010-001-A	Open the Main Gear Doors for Access
TASK 32-12-00-410-001-A	Close the Main Gear Doors after Access
TASK 53-35-13-000-001-A	Removal of the Belly Fairing Access Panels
TASK 53-35-13-400-001-A	Installation of the Belly Fairing Access Panels
MLG-Well and Hydraulic Compartment

3. Job Set-up
Subtask 05-21-40-010-054-A

A. Not Applicable

4. Procedure
Subtask 05-21-40-210-054-A

A. Inspection

MLG-Well and Hydraulic Compartment

(1) Inspection through access panels 147AB and 147EB:
(a) Put the ACCESS PLATFORM 2M (6 FT) in position at zones 147 and 148.
(b) Remove access panels 147AB and 147EB (Ref. AMM TASK 53-35-13-000-001).
(c) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(d) Do a General Visual Inspection (GVI) of the MLG well and hydraulic compartment (zones 147 and 148). This inspection includes the APU bleed-air piping.
(e) Make sure that:

There is no damage (corrosion, leaks or cracks) on all the parts of the components and the structure that you can see.
All the installations (wiring, ducting and piping) are correctly attached.

(f) Make sure that the work area is clean and clear of tools and other items.
(g) Install access panels 147AB and 147EB (Ref. AMM TASK 53-35-13-400-001).
(h) Remove the access platform(s).
(2) Inspection through the MLG doors 734 (744):
(a) Open MLG doors 734 (744) (Ref. AMM TASK 32-12-00-010-001).
(b) Put the ACCESS PLATFORM 2M (6 FT) in position at zones 147 and 148.
(c) If necessary, use the FLASHLIGHT and the MIRROR - INSPECTION to do the inspection.
(d) Do a GVI of the MLG well and hydraulic compartment (zones 147 and 148).
(e) Make sure that:

There is no damage (corrosion, leaks or cracks) on all the parts of the components and the structure that you can see.
All the installations (wiring, ducting and piping) are correctly attached.

(f) Make sure that the work area is clean and clear of tools and other items.
(g) Remove the access platform(s).
(h) Close MLG doors 734 (744) (Ref. AMM TASK 32-12-00-410-001).

5. Close-up
Subtask 05-21-40-410-054-A

A. Remove all the fixtures, tools, test and support equipment used during this procedure.

[Rev.10 from 2021] 2026.03.31 22:48:48 UTC