General Visual Inspection of Air Conditioning Compartment and Fairings (EWIS)

TASK 05-21-90-200-009-A
General Visual Inspection of Air Conditioning Compartment and Fairings (EWIS)

ZONE: 191
ZONE: 192

1. Reason for the Job
Refer to the MPD TASK: ZL-191-02
GENERAL VISUAL INSPECTION OF AIR CONDITIONING COMPARTMENT AND FAIRINGS (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)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
191	AIR CONDITIONING COMPT AND FAIRINGS
192	AIR CONDITIONING COMPT AND FAIRINGS
191AB, 191AT, 191BT, 191CT, 191DT, 191EB, 191ET, 191GB, 191HB, 191JB, 191KB, 191LB, 192AB, 192AT, 192BT, 192CT, 192DT, 192EB, 192ET, 192FB, 192KB, 192LB, 192MB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 52-42-18-000-001-A	Removal of the Fuel Panel Access-Door
TASK 52-42-18-400-001-A	Installation of the Fuel Panel Access-Door
TASK 53-25-11-000-001-A	Removal of the Forward Belly Fairing Panels (191AT, 192AT, 191AB, 192AB)
TASK 53-25-11-400-001-A	Installation of Forward Belly Fairing Panels (191AT, 191AB, 192AT, 192AB)
TASK 53-35-11-000-001-A	Removal of the Wing-to-Fuselage Fairings
TASK 53-35-11-400-001-A	Installation of the Wing-to-Fuselage Fairings
TASK 53-35-13-000-001-A	Removal of the Belly Fairing Access Panels
TASK 53-35-13-000-002-A	Removal of the Quick-Release Access Panels from the Belly Fairing Structure
TASK 53-35-13-400-001-A	Installation of the Belly Fairing Access Panels
TASK 53-35-13-400-002-A	Installation of the Quick-Release Access Panels on the Belly Fairing Structure
Air Conditioning Compartment and Fairings

3. Job Set-up
Subtask 05-21-90-010-058-A

A. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) in position at the zones 191 and 192.
(2) Remove the wing-to-fuselage fairings:

192MB
(Ref. AMM TASK 52-42-18-000-001).
191BT, 191CT, 191DT, 191ET, 191LB, 192BT, 192CT, 192DT, 192ET and 192LB
(Ref. AMM TASK 53-35-11-000-001).

(3) Remove the access panels:

191GB and 191JB
(Ref. AMM TASK 53-35-13-000-001).
191AB, 191AT, 192AB and 192AT
(Ref. AMM TASK 53-25-11-000-001).
191EB, 191HB, 191KB, 192EB, 192FB and 192KB
(Ref. AMM TASK 53-35-13-000-002).

4. Procedure
Subtask 05-21-90-210-058-A

A. Inspection

Air Conditioning Compartment and Fairings

(1) Do a general visual inspection of the air conditioning compartment and fairings (zones 191 and 192).
(2) Make sure that there are no signs of corrosion, leaks, cracks or damage on all the parts of the components and the structure that you can see.
(3) Make sure that all the installations (wiring, ducting and piping) are correctly attached.

5. Close-up
Subtask 05-21-90-410-058-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the access panels:

191EB, 191HB, 191KB, 192EB, 192FB and 192KB
(Ref. AMM TASK 53-35-13-400-002).
191AB, 191AT, 192AB and 192AT
(Ref. AMM TASK 53-25-11-400-001).
191GB and 191JB
(Ref. AMM TASK 53-35-13-400-001).

(3) Install the wing-to-fuselage fairings:

191BT, 191CT, 191DT, 191ET, 191LB, 192BT, 192CT, 192DT, 192ET and 192LB
(Ref. AMM TASK 53-35-11-400-001).
192MB
(Ref. AMM TASK 52-42-18-400-001).

(4) Remove the access platform(s).
(5) Remove all the fixtures, tools, test and support equipment used during this procedure.

[Rev.10 from 2021] 2026.03.31 22:49:06 UTC