GENERAL VISUAL INSPECTION OF LATERAL AVIONICS COMPARTMENT (EWIS)

TASK 05-21-20-200-003-A
GENERAL VISUAL INSPECTION OF LATERAL AVIONICS COMPARTMENT (EWIS)

ZONE: 125
ZONE: 126
ZONE: 129

1. Reason for the Job
Refer to the MPD TASK: ZL-125-01

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	AR	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
125	LATERAL AVIONIC COMPARTMENT
126	LATERAL AVIONIC COMPARTMENT
129	STAIR BAY
812, 822

C. Referenced Information

REFERENCE	DESIGNATION
Access Doors of the Avionics Compartment (Left Side)
Access Doors of the Avionics Compartment (Right Side)

3. Job Set-up
Subtask 05-21-20-010-052-E

A. Get Access
(1) Put an ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position at zones 125 and 126.
(2) Open the access doors 822 and 812.

Access Doors of the Avionics Compartment (Left Side)

Access Doors of the Avionics Compartment (Right Side)

4. Procedure
Subtask 05-21-20-210-052-A

A. Inspection
(1) Do a general visual inspection of the lateral avionics compartment.
(2) Make sure that there are no signs of corrosion, cracks or damage.
(3) Make sure that all the installations (wiring, ducting, piping) are attached correctly.

5. Close-up
Subtask 05-21-20-410-052-E

A. Close Access
(1) Close the access doors 822 and 812.
(2) Remove the access platform(s).

[Rev.8 from Aug 2017] 2026.03.31 22:48:36 UTC