GENERAL VISUAL INSPECTION OF AFT PASSENGER OVERHEAD COMPARTMENT (EWIS)

TASK 05-22-50-200-003-A
GENERAL VISUAL INSPECTION OF AFT PASSENGER OVERHEAD COMPARTMENT (EWIS)

ZONE: 253
ZONE: 254

1. Reason for the Job
Refer to the MPD TASK: ZL-253-01
GENERAL VISUAL INSPECTION OF AFT PASSENGER OVERHEAD 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	AR	ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
253	AFT PASSENGER COMPARTMENT OVERHEAD COMPT
254	AFT PASSENGER COMPARTMENT OVERHEAD COMPT

C. Referenced Information

REFERENCE	DESIGNATION
TASK 25-23-41-000-001-A	Removal of the Ceiling Panels
TASK 25-23-41-400-001-A	Installation of the Ceiling Panels
TASK 25-24-41-000-001-A	Removal of the Overhead Stowage Compartments (OHSC)
TASK 25-24-41-400-001-A	Installation of the Overhead Stowage Compartments (OHSC)
TASK 52-10-00-010-001-A	Opening of the Passenger/Crew Door
TASK 52-10-00-410-001-A	Closing of the Passenger/Crew Door
TASK 25-33-00-00	AFT GALLEY - DESCRIPTION AND OPERATION
TASK 25-43-00-00	AFT LAVATORIES - DESCRIPTION AND OPERATION
Inspection Area of the Aft Passenger Overhead Compartment (Zones 253-254) ** ON A/C NOT FOR ALL
Inspection Area of the Aft Passenger Overhead Compartment (Zones 253-254) ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 05-22-50-010-052-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Put an ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position at zone 832 (842).
(2) Open the AFT passenger/crew door 832 (842) (Ref. AMM TASK 52-10-00-010-001).
(3) Remove the galleys and lavatories between FR47 and FR64, if installed.
To do this, refer to the para. Component Location in the applicable ATA 25 Description/Operation: for the galleys (Ref. AMM D/O 25-33-00-00), for the lavatories (Ref. AMM D/O 25-43-00-00). In this paragraph, you will find the cross-references of the removal/installation tasks.
(4) Remove the overhead stowage compartments between FR47 and FR64 (Ref. AMM TASK 25-24-41-000-001).
(5) Remove the ceiling panels from FR47 to FR64
(Ref. AMM TASK 25-23-41-000-001).
(6) Lift the insulation blankets sufficiently to do the inspection.

Subtask 05-22-50-010-052-C ** ON A/C NOT FOR ALL

A. Get Access
(1) Put an ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position at zone 832 (842).
(2) Open the AFT passenger/crew door 832 (842) (Ref. AMM TASK 52-10-00-010-001).
(3) Remove the galleys and lavatories between FR47/51 and FR64, if installed.
To do this, refer to the para. Component Location in the applicable ATA 25 Description/Operation: for the galleys (Ref. AMM D/O 25-33-00-00), for the lavatories (Ref. AMM D/O 25-43-00-00). In this paragraph, you will find the cross-references of the removal/installation tasks.
(4) Remove the overhead stowage compartments between FR47/51 and FR64 (Ref. AMM TASK 25-24-41-000-001).
(5) Remove the ceiling panels from FR47/51 to FR64
(Ref. AMM TASK 25-23-41-000-001).
(6) Lift the insulation blankets sufficiently to do the inspection.

4. Procedure
Subtask 05-22-50-210-052-A

A. Do a general visual inspection of the aft passenger overhead compartment (zones 253 and 254).

Inspection Area of the Aft Passenger Overhead Compartment (Zones 253-254) ** ON A/C NOT FOR ALL

Make sure that:

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

5. Close-up
Subtask 05-22-50-410-052-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Put the insulation blankets back in position.
(3) Install the ceiling panels from FR47 to FR64
(Ref. AMM TASK 25-23-41-400-001).
(4) Install the overhead stowage compartments from FR47 to FR64 (Ref. AMM TASK 25-24-41-400-001).
(5) Install the galleys and lavatories between FR47 and FR64, if removed.
To do this, refer to the para. Component Location in the applicable ATA 25 Description/Operation: for the galleys (Ref. AMM D/O 25-33-00-00), for the lavatories (Ref. AMM D/O 25-43-00-00). In this paragraph, you will find the cross-references of the removal/installation tasks.
(6) Close the AFT passenger/crew door 832 (842) (Ref. AMM TASK 52-10-00-410-001).
(7) Remove the access platform(s).

Subtask 05-22-50-410-052-C ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Put the insulation blankets back in position.
(3) Install the ceiling panels from FR47/51 to FR64
(Ref. AMM TASK 25-23-41-400-001).
(4) Install the overhead stowage compartments from FR47/51 to FR64 (Ref. AMM TASK 25-24-41-400-001).
(5) Install the galleys and lavatories between FR47/51 and FR64, if removed.
To do this, refer to the para. Component Location in the applicable ATA 25 Description/Operation: for the galleys (Ref. AMM D/O 25-33-00-00), for the lavatories (Ref. AMM D/O 25-43-00-00). In this paragraph, you will find the cross-references of the removal/installation tasks.
(6) Close the AFT passenger/crew door 832 (842) (Ref. AMM TASK 52-10-00-410-001).
(7) Remove the access platform(s).

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