Visual Inspection of the Fan Section after Engine Operation in Severe Icing Condition [CFML]

TASK 72-00-00-200-817-A
Visual Inspection of the Fan Section after Engine Operation in Severe Icing Condition

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	LIGHT SOURCE - TORCH
No specific	1	MAT - RUBBER
No specific	AR	WARNING NOTICE(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 72-21-00-210-803-A	Visual Inspection of the Stage 1 Booster Vane Assembly (PRE SB 72-00-0080)
TASK 72-21-00-210-803-A-01	Visual Inspection of the Stage 1 Booster Vane Assembly and the Rotating Ring Spacer (POST SB 72-00-0080)
TASK 72-21-01-210-802-A	Visual Inspection of the Flow Path Panel
TASK 72-21-02-210-801-A	Visual Inspection of the Booster Flow Splitter
TASK 72-21-20-210-802-A	Visual Inspection of the Fan Blade
TASK 72-21-40-210-801-A	Visual Inspection of the Front Spinner
TASK 72-21-60-210-801-A	Visual Inspection of the Platform Front Shroud
TASK 72-23-01-210-801-A	Visual Inspection of the Fan Case
TASK 72-23-03-210-801-A	Visual Inspection of the Acoustic Shroud
TASK 72-23-04-210-801-A	Visual Inspection of the Aft Acoustical Panel
TASK 72-24-20-210-801-A	Visual Inspection of the Outlet Guide Vanes (OGVs), Inter OGV Seals and OGV Plugs

3. Job Set-up
Subtask 72-00-00-941-224-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).

4. Procedure
Subtask 72-00-00-200-056-A

A. Visual Inspection of the Fan Section after Engine Operation in Severe Icing Condition.

NOTE: You must do a visual inspection of the fan section area (primarily, the front end of the fan section) after the engines have operated in bad icing conditions.

NOTE: This inspection can be done with the fan cowl and thrust reverser cowl doors closed. If necessary, use an LIGHT SOURCE - TORCH (flashlight) to look rearwards through the fan rotor blades.

(1) Put a MAT - RUBBER, in the powerplant inlet cowl before you go into it to do this inspection. If necessary, use a flashlight for a better lighting aft of the fan rotor blades.
(2) Look for possible damage to the front spinner and front platform shroud exposed areas (Ref. AMM TASK 72-21-40-210-801) (Ref. AMM TASK 72-21-60-210-801).
(3) Examine the general condition of the fan rotor blades (Ref. AMM TASK 72-21-20-210-802).
(4) Look for possible damage to the forward acoustic shroud (Ref. AMM TASK 72-23-03-210-801).
(5) Through the fan rotor blades, look for possible damage to:

NOTE: If necessary, (dim lighting conditions) use a flashlight.

(a) The leading edge of fan Outlet Guide Vanes (OGVs) (Ref. AMM TASK 72-24-20-210-801).
(b) The leading edge of fan Inlet Guide Vanes (IGVs) (Ref. AMM TASK 72-21-00-210-803).
(c) The flow splitter and flowpath panel (Ref. AMM TASK 72-21-02-210-801) (Ref. AMM TASK 72-21-01-210-802).
(d) The rear acoustic panel (Ref. AMM TASK 72-23-04-210-801).
(e) The abradable flowpath (Ref. AMM TASK 72-23-01-210-801).
(6) Remove the MAT - RUBBER from the powerplant inlet cowl.

5. Close-up
Subtask 72-00-00-410-264-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:50:49 UTC