Detailed Visual Inspection (DVI) of the Fan Exit Fairing (Splitter) [PW11]

TASK 72-21-06-220-801-A
Detailed Visual Inspection (DVI) of the Fan Exit Fairing (Splitter)

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AFTER SHUTDOWN. THE ENGINE CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

1. Reason for the Job
Use this procedure for a visual inspection of the fan exit fairing (splitter).
Perform this procedure when foreign object damage is suspected.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	FLASHLIGHT
No specific	1	MAT - PROTECTIVE
636-1100-3GSE	1	INLET COWL PROTECT COVER

B. Referenced Information

REFERENCE	DESIGNATION
TASK 71-00-00-860-833-A	Procedure to Prevent Engine Motoring
TASK 72-21-06-000-801-A	Removal of the Fan Exit Fairing (Splitter)
TASK 72-21-06-320-801-A	Blend the Surface Damage of the Fan Exit Fairing (Splitter)
TASK 72-21-06-400-801-A	Installation of the Fan Exit Fairing (Splitter)
Fan Exit Fairing (Splitter)

3. Job Set-up
Subtask 72-21-06-941-050-A ** ON A/C NOT FOR ALL

A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833)

4. Procedure
Subtask 72-21-06-220-050-A ** ON A/C NOT FOR ALL

A. Detailed Visual Inspection (DVI) of the Fan Exit Fairing (Splitter)

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

(1) Put the 636-1100-3GSE INLET COWL PROTECT COVER or equivalent MAT - PROTECTIVE in the inlet cowl.
(2) Find the fan exit fairing, which splits the air between the core engine and the fan bypass, aft of the fan blades.
(3) Visually inspect the fan exit fairing (splitter) for damage as follows (see table 6):
(a) Look between the fan blades and inspect the fan exit fairing (splitter) for signs of damage with the use of a FLASHLIGHT.

Table 6 Visual Inspection of the Fan Exit Fairing (Splitter)

EXAMINE	DAMAGE	DISPOSITION
Fan exit fairing Area A:
For round bottom dents	Dents with a depth up to 0.100 in. (2.54 mm)	The fan exit fairing (splitter) is permitted to continue in service.
	Dents with a depth more than 0.100 in. (2.54 mm)	Not permitted. Repair the fairing. (Ref. AMM TASK 72-21-06-320-801) or replace the fairing (Ref. AMM TASK 72-21-06-000-801) and (Ref. AMM TASK 72-21-06-400-801) in no more than 50 flight hours.
For nicks, gouges or scratches	Nicks, gouges or scratches with a maximum depth of 0.020 in. (0.508 mm)	The fan exit fairing (splitter) is permitted to continue service.
	Nicks, gouges or scratches with a depth more than 0.020 in. (0.508 mm)	Not permitted. Repair the fairing. (Ref. AMM TASK 72-21-06-320-801) or replace the fairing (Ref. AMM TASK 72-21-06-000-801) and (Ref. AMM TASK 72-21-06-400-801) in no more than five cycles.
For pitting or corrosion	Pitting or corrosion with a maximum depth of 0.005 in. (0.127 mm)	The fan exit fairing (splitter) is permitted to continue in service.
	Pitting or corrosion with a depth more than 0.005 in. (0.127 mm)	Not permitted. Repair the fairing. (Ref. AMM TASK 72-21-06-320-801) or replace the fairing (Ref. AMM TASK 72-21-06-000-801) and (Ref. AMM TASK 72-21-06-400-801) in no more than five cycles.
For cracks	Any amount	Not permitted. Replace the fairing (Ref. AMM TASK 72-21-06-000-801) and (Ref. AMM TASK 72-21-06-400-801) before the next flight.
For punctures	Any amount	Not permitted. Replace the fairing (Ref. AMM TASK 72-21-06-000-801) and (Ref. AMM TASK 72-21-06-400-801) before the next flight.
For loose attachment screws	Any amount	Not permitted. Tighten all loose screws immediately.
For missing attachment screws	A maximum of one missing attachment screw	Not permitted. Do a check of all remaining screws and tighten if necessary. Replace the missing screw in not more than 50 flight hours.
	More than one missing attachment screw	Not permitted. Do a check of all remaining screws and tighten if necessary. Replace the missing screws immediately.

(4) Examine the assembly for unwanted objects, damage and correct assembly.
(5) Remove the MAT - PROTECTIVE.

5. Close-up
Subtask 72-21-06-860-050-A ** ON A/C NOT FOR ALL

A. Put the aircraft back to its initial configuration.
(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 02:48:50 UTC