GENERAL VISUAL INSPECTION OF AIR INTAKE LIP (EWIS)

TASK 05-24-30-200-001-A
GENERAL VISUAL INSPECTION OF AIR INTAKE LIP (EWIS)

ZONE: 433
ZONE: 434
ZONE: 443
ZONE: 444

1. Reason for the Job
Refer to the MPD TASK: ZL-433-01
GENERAL VISUAL INSPECTION OF AIR INTAKE LIP (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 2M (6 FT)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
433	AIR INTAKE LIP
434	AIR INTAKE LIP
443	AIR INTAKE LIP
444	AIR INTAKE LIP
434AR, 437AL, 438AR, 444AR, 447AL, 448AR
433AZ, 433BZ, 434BZ, 443AZ, 443BZ, 444BZ
434BR, 444BR

C. Referenced Information

REFERENCE	DESIGNATION
TASK 71-13-00-010-010-A	Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-010-040-A	Opening of the Fan Cowl Doors
TASK 71-13-00-010-040-B	Opening of the Fan Cowl Doors
TASK 71-13-00-410-010-A	Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-040-A	Closing of the Fan Cowl Doors
TASK 71-13-00-410-040-B	Closing of the Fan Cowl Doors
Access Doors of the Left Nacelle (Left Side) ** ON A/C NOT FOR ALL
Access Doors of the Left Nacelle (Right Side) ** ON A/C NOT FOR ALL
Access Doors of the Right Nacelle (Right Side) ** ON A/C NOT FOR ALL
Access Doors of the Right Nacelle (Left Side) ** ON A/C NOT FOR ALL
Access Doors of the Left Nacelle (Left Side) ** ON A/C NOT FOR ALL
Access Doors of the Left Nacelle (Right Side) ** ON A/C NOT FOR ALL
Access Doors of the Right Nacelle (Right Side) ** ON A/C NOT FOR ALL
Access Doors of the Right Nacelle (Left Side) ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 05-24-30-010-050-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) in position at zones 433 and 443.
(2) Open the fan cowl doors:

Access Doors of the Left Nacelle (Left Side) ** ON A/C NOT FOR ALL

Access Doors of the Left Nacelle (Right Side) ** ON A/C NOT FOR ALL

Access Doors of the Right Nacelle (Right Side) ** ON A/C NOT FOR ALL

Access Doors of the Right Nacelle (Left Side) ** ON A/C NOT FOR ALL

437AL, 438AR, 447AL and 448AR (Ref. AMM TASK 71-13-00-010-040).
(3) Remove the access panels:
433AZ 433BZ,
434AR 434BZ,
443AZ 443BZ,
444AR 444BZ.

Subtask 05-24-30-010-050-C ** ON A/C NOT FOR ALL

A. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) in position at zones 433 and 443.
(2) Remove the access panels:

Access Doors of the Left Nacelle (Left Side) ** ON A/C NOT FOR ALL

Access Doors of the Left Nacelle (Right Side) ** ON A/C NOT FOR ALL

434AR 434BR,

Access Doors of the Right Nacelle (Right Side) ** ON A/C NOT FOR ALL

Access Doors of the Right Nacelle (Left Side) ** ON A/C NOT FOR ALL

444AR 444BR.
(3) Open the fan cowl doors 437AL, 438AR, 447AL and 448AR (Ref. AMM TASK 71-13-00-010-010).

4. Procedure
Subtask 05-24-30-210-050-A ** ON A/C NOT FOR ALL

A. Inspection
(1) Do a general visual inspection of the air intake lip and the inlet cowl.
(2) Make sure that there are no signs of corrosion, cracks or damage.
(3) Make sure that all the installations (wiring, ducting, piping) are correctly attached.

5. Close-up
Subtask 05-24-30-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Install the access panels:
433AZ 433BZ,
434AR 434BZ,
443AZ 443BZ,
444AR 444BZ.
(2) Close the fan cowl doors 437AL, 438AR, 447AL and 448AR (Ref. AMM TASK 71-13-00-410-040).
(3) Remove the access platform(s).

Subtask 05-24-30-410-050-C ** ON A/C NOT FOR ALL

A. Close Access
(1) Install the access panels:
434AR 434BR,
444AR 444BR.
(2) Close the fan cowl doors 437AL, 438AR, 447AL and 448AR (Ref. AMM TASK 71-13-00-410-010).
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 22:49:52 UTC