Visual Inspection of the Front Shroud Platform Balance Weight [CFML]

TASK 72-21-43-210-801-A
Visual Inspection of the Front Shroud Platform Balance Weight

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

1. Reason for the Job
This procedure gives the criteria for the visual inspection of the platform front shroud balance weight.

NOTE: The inspection criteria below are applicable after the removal of the high metal.

NOTE: You can use equivalent alternatives for standard tools, equipment and consumable materials.

2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 1M(3 FT)
No specific	1	MAT - PROTECTIVE
No specific	AR	WARNING NOTICE(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 72-21-40-000-801-A	Removal of the Front Spinner
TASK 72-21-40-400-801-A	Installation of the Front Spinner
Front Shroud Platform Balance Weight

3. Job Set-up
Subtask 72-21-43-941-050-A

A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate:

The ENG/MODE selector switch
The ENG/MASTER 1(2) control switch.

(2) On the ENG section of maintenance panel 50VU:
(a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
(3) Install a MAT - PROTECTIVE in the lower half of the inlet cowl.

Subtask 72-21-43-010-050-A

B. Get Access
(1) Put an ACCESS PLATFORM 1M(3 FT) in position.
(2) Remove the front spinner (Ref. AMM TASK 72-21-40-000-801).

4. Procedure
Subtask 72-21-43-420-050-A

A. Visual Inspection of the Junction Shroud Fitting on the Exposed Area

Front Shroud Platform Balance Weight

(1) Do a visual inspection of the platform front shroud balance weight (1). Refer to the table below for the inspection area.

INSPECT/CHECK	MAXIMUM SERVICEABLE LIMITS	REMARKS
1.Visual inspection of all areas
A.Nicks, dents, scratches	Any number less than 0.0007 in. (0.02 mm) in depth
B.Fretting, wear	Any number less than 0.0007 in. (0.02 mm) in depth

5. Close-up
Subtask 72-21-43-410-050-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the front spinner (Ref. AMM TASK 72-21-40-400-801).
(3) Remove the MAT - PROTECTIVE from the lower half of the inlet cowl.
(4) Remove the access platform(s).
(5) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:52:00 UTC