General Visual Inspection of Inboard Fixed Trailing Edge Structure from Shroud Box to RIB 9 (EWIS)

TASK 05-25-70-200-003-A
General Visual Inspection of Inboard Fixed Trailing Edge Structure from Shroud Box to RIB 9 (EWIS)

WARNING: DO NOT EXTEND THE SLATS AND FLAPS WHEN THE THRUST REVERSER COWLS ARE DEPLOYED IN THE 45 DEG. POSITION.

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

ZONE: 573
ZONE: 673

1. Reason for the Job
Refer to the MPD TASK: ZL-573-01
GENERAL VISUAL INSPECTION OF INBOARD FIXED TRAILING EDGE STRUCTURE FROM SHROUD BOX TO RIB 9 (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 3M (10 FT)- ADJUSTABLE
98L12003001000	AR	HARNESS,SAFETY

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
573	FIXED STRUCT FROM STA 1800 TO STA 4666
673	FIXED STRUCT FROM STA 1800 TO STA 4666

C. Referenced Information

REFERENCE	DESIGNATION
TASK 27-50-00-866-008-A	Extension of the Flaps on the Ground
TASK 27-50-00-866-008-A-01	Extension of the Flaps/Slats on the Ground
TASK 27-50-00-866-009-A	Retraction of the Flaps on the Ground
TASK 27-50-00-866-009-A-01	Retraction of the Flaps/Slats on the Ground
TASK 27-60-00-866-002-A	Extension-Retraction of the Spoilers for Maintenance
Inboard Fixed-Trailing-Edge Structure from Shroud Box to RIB9

3. Job Set-up
Subtask 05-25-70-866-052-A

A. Aircraft Maintenance Configuration
(1) Extend the spoilers (Ref. AMM TASK 27-60-00-866-002).
(2) Fully extend the flaps (Ref. AMM TASK 27-50-00-866-008).

Subtask 05-25-70-941-051-A

B. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at zone 573 (673).

WARNING: BEFORE YOU START WORK, YOU MUST PUT ON A SAFETY HARNESS AND ATTACH IT TO THE ACCESS PLATFORM. WITHOUT A SAFETY HARNESS, YOU CAN FALL. THIS CAN KILL YOU OR CAUSE YOU INJURY.

(2) Put on and attach a 98L12003001000 HARNESS,SAFETY before you start work in the work area.

4. Procedure
Subtask 05-25-70-210-052-A

A. Inspection

Inboard Fixed-Trailing-Edge Structure from Shroud Box to RIB9

(1) Do a general visual inspection of the inboard fixed-trailing-edge structure from shroud box to RIB9 (zones 573 and 673).
(2) Make sure that there are no signs of corrosion, cracks or damage.
(3) Make sure that all the installations (wiring, ducting and piping) are correctly attached.

5. Close-up
Subtask 05-25-70-942-051-A

A. Close Access
(1) Remove the access platform(s).
(2) Remove all the fixtures, tools, test and support equipment used during this procedure.

Subtask 05-25-70-866-053-A

B. Aircraft Maintenance Configuration
(1) Fully retract the flaps (Ref. AMM TASK 27-50-00-866-009).
(2) Retract the spoilers (Ref. AMM TASK 27-60-00-866-002).

[Rev.10 from 2021] 2026.03.31 22:50:31 UTC