Visual Inspection of the Fan Section after Engine Operation in Severe Icing Conditions [CFMI]

TASK 72-00-00-200-027-A
Visual Inspection of the Fan Section after Engine Operation in Severe Icing Conditions

1. Reason for the Job
You must do a visual inspection of the fan section area (primary, 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 electric torch (flashlight) to look rearwards through the fan rotor blades.

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

REFERENCE	QTY	DESIGNATION
No specific	AR	FLASHLIGHT
No specific	AR	MAT - RUBBER
No specific	AR	WARNING NOTICE(S)

B. Referenced Information

REFERENCE	DESIGNATION
TASK 72-21-00-210-001-A	Inspection/Check of the Spinner Cone
TASK 72-21-00-210-025-A	Inspect Fan Rotor Blades Installed on the Fan Disk
TASK 72-23-00-210-001-A	Visual Inspection of the Fan Frame Assembly

3. Job Set-up
Subtask 72-00-00-941-059-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
(4) Put a MAT - RUBBER, in the powerplant inlet cowl before you go into it to do this inspection. If necessary, use an FLASHLIGHT for a better lighting aft of the fan rotor blades.

4. Procedure
Subtask 72-00-00-210-059-A ** ON A/C NOT FOR ALL

A. Visual Inspection of the Fan Selection after Engine Operation in Bad Icing Conditions
(1) Look for possible damage to the spinner front and rear cones exposed areas (Ref. AMM TASK 72-21-00-210-001).
(2) Examine the general condition of the fan rotor blades (Ref. AMM TASK 72-21-00-210-025).
(3) Look for possible damage to the fan forward acoustical panels (Ref. AMM TASK 72-23-00-210-001).
(4) Through the fan rotor blades, look for possible damage to:

NOTE: If necessary, (dim lighting conditions) use an FLASHLIGHT.

(a) the leading edge of fan outlet guide vanes (OGVs),
(b) splitter fairing,
(c) fan mid acoustical panels (located between the fan rotor blades and the OGV assembly) (Ref. AMM TASK 72-23-00-210-001).

5. Close-up
Subtask 72-00-00-869-061-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Remove the rubber mat, or the equivalent form material flooring from the powerplant inlet cowl.
(2) Make sure that the work area is clean and clear of tools and other items.
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 02:37:40 UTC