DOC AIRBUS | AMM A320FGeneral Visual Inspection (GVI) of the Engine Inlet Area [PW11]
TASK 72-00-00-210-813-A
General Visual Inspection (GVI) of the Engine Inlet Area
Use this procedure to do a General Visual Inspection (GVI) of the engine inlet area with a white light. This inspection is for the fan rotor assembly, the inside of the fan case and the fan exit fairing (splitter area). If you see damage inside the inlet area, this procedure will reference you to a more Detailed Visual Inspection (DVI) for limits and dispositions. Do not use this inspection if you think that the engine had a Foreign Object Damage (FOD) event or birdstrike event. If you think the engine had these events, refer to task AMM 72-00-00-210-807.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 72-00-00-941-181-A ** ON A/C NOT FOR ALL
Subtask 72-00-00-410-225-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:47:24 UTC
General Visual Inspection (GVI) of the Engine Inlet Area
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AND THE ADJACENT COMPONENTS AFTER ENGINE SHUTDOWN. THE ENGINE, THE ENGINE OIL AND THE ADJACENT COMPONENTS 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.
ZONE: 400
1. Reason for the JobUse this procedure to do a General Visual Inspection (GVI) of the engine inlet area with a white light. This inspection is for the fan rotor assembly, the inside of the fan case and the fan exit fairing (splitter area). If you see damage inside the inlet area, this procedure will reference you to a more Detailed Visual Inspection (DVI) for limits and dispositions. Do not use this inspection if you think that the engine had a Foreign Object Damage (FOD) event or birdstrike event. If you think the engine had these events, refer to task AMM 72-00-00-210-807.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) |
| No specific | 1 | FLASHLIGHT |
| No specific | 1 | MAT - PROTECTIVE |
| 636-1100-3GSE | 1 | INLET COWL PROTECT COVER |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.P05-005) | wipe, lint-free |
| (Material No.P11-014) | alcohol, isopropyl |
| (Material No.P11-049) | cleaner, aqueous |
| (Material No.P11-078) | alcohol, isopropyl |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 70-27-00-910-804-A | SPOP 208 - Degreasing of Parts by Solvent Wiping |
| TASK 70-27-00-910-805-A | SPOP 209 - Degreasing of Parts by Aqueous Cleaning |
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 72-11-01-220-801-A | Detailed Visual Inspection of the Inlet Cone |
| TASK 72-11-03-220-802-A | Visual Inspection of the Fan Blades Surface |
| TASK 72-21-01-210-801-A | Detailed Visual Inspection (DVI) of the Fan Case Front Acoustic Liner Segment |
| TASK 72-21-01-220-801-A | Detailed Visual Inspection (DVI) of the Fan Case Rear Acoustic Liner Segment |
| TASK 72-21-01-220-802-A | Detailed Visual Inspection (DVI) of the Fan Case Rubstrip |
| TASK 72-21-01-220-803-A | Detailed Visual Inspection (DVI) of the Fan Case Ice Liner Panel Segments |
| TASK 72-21-02-220-801-A | Detailed Visual Inspection (DVI) of the Fan Exit Guide Vanes (FEGV) |
| TASK 72-21-02-220-803-A | Detailed Visual Inspection (DVI) of the Outer Structural Guide Vane Liner |
| TASK 72-21-04-210-801-A | General Visual Inspection (GVI) of the Fan Exit Fairing (Upper BiFi) |
| TASK 72-21-06-220-801-A | Detailed Visual Inspection (DVI) of the Fan Exit Fairing (Splitter) |
| TASK 72-21-07-220-801-A | Detailed Visual Inspection (DVI) of the Fan Exit Stator |
| TASK 72-21-12-220-801-A | Detailed Visual Inspection (DVI) of the Stator Guide Vane (SGV) Inner Liner |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-30-00-440-805-A | Reactivation of the Thrust Reverser System after Ground Maintenance |
| TASK 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
| TASK 78-36-00-410-802-A | Closing of the Thrust Reverser Cowl-Doors |
Engine Inlet Area - (Fan Rotor Parts)Subtask 72-00-00-941-181-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).
Subtask 72-00-00-010-263-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
(2) Put an ACCESS PLATFORM 2M (6 FT) in position.
Subtask 72-00-00-040-131-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
(2) Put an ACCESS PLATFORM 2M (6 FT) in position.
C. Deactivation of the Thrust Reverser for Maintenance
Subtask 72-00-00-010-264-A ** ON A/C NOT FOR ALL WARNING:
YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
(1) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805). D. Get Access
(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
4. Procedure(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 72-00-00-210-162-A ** ON A/C NOT FOR ALL A. General Visual Inspection (GVI) of the Engine Inlet Area
(1) Put the 636-1100-3GSE INLET COWL PROTECT COVER or the MAT - PROTECTIVE in the inlet cowl.
(2) Do a visual inspection of the fan rotor assembly with the FLASHLIGHT as follows (see Table 1 for specific types of damage and dispositions):
(a) Do a GVI of the fan blades (20 locations).
(b) Do a GVI of the inlet cone (front and rear segments).
(a) Do a GVI of the fan case front acoustic liner segments (all around forward of the fan blades).
(b) Do a GVI of the fan case rubstrip segments (all around the fan blade tips).
(c) Do a GVI of the fan case ice liner (all around rear of the fan blades).
(d) Do a GVI of the fan case rear acoustic liner segments (all around rear of the ice liner).
(e) Do a GVI of the fan exit stator (all around rear of the fan blades at the engine core inlet).
(f) Do a GVI of the fan exit fairing (splitter) (all around rear of the fan blades at the engine core inlet).
(g) Do a GVI of the Structural Guide Vanes (SGVs) (all around rear of the fan blades).
(h) Do a GVI of the fan exit fairing assembly (upper bifi).
(i) Do a GVI of the inner SGV liner segments (all around the inner diameter of the SGVs).
(j) Do a GVI of the outer SGV liner segments (all around the outer diameter of the SGVs).
(5) Examine the assembly for foreign objects, damage and correct assembly.
5. Close-up(1) Put the 636-1100-3GSE INLET COWL PROTECT COVER or the MAT - PROTECTIVE in the inlet cowl.
(2) Do a visual inspection of the fan rotor assembly with the FLASHLIGHT as follows (see Table 1 for specific types of damage and dispositions):
(a) Do a GVI of the fan blades (20 locations).
(b) Do a GVI of the inlet cone (front and rear segments).
| EXAMINE | DAMAGE | DISPOSITION |
|---|---|---|
| Fan blades (20 locations) | Foreign Object Damage (FOD), nicks, dents, tears, cracks or missing material | Do the following visual inspections (Ref. AMM TASK 72-11-03-220-802). |
| Inlet cone (front and rear segments) | FOD, dents, cracks or delamination | Do the following visual inspections (Ref. AMM TASK 72-11-01-220-801). |
| | Oil streaks from the vent holes (dry) | Wipe the marks with the |
| | Oil streaks from the vent holes (wet) | Wipe all marks with the |
Table - Fan Rotor Parts - Visual Inspection
(3) Do a visual inspection of the fan case assembly with the FLASHLIGHT as follows (refer to Table 2 for specific types of damage and dispositions): (a) Do a GVI of the fan case front acoustic liner segments (all around forward of the fan blades).
(b) Do a GVI of the fan case rubstrip segments (all around the fan blade tips).
(c) Do a GVI of the fan case ice liner (all around rear of the fan blades).
(d) Do a GVI of the fan case rear acoustic liner segments (all around rear of the ice liner).
(e) Do a GVI of the fan exit stator (all around rear of the fan blades at the engine core inlet).
(f) Do a GVI of the fan exit fairing (splitter) (all around rear of the fan blades at the engine core inlet).
(g) Do a GVI of the Structural Guide Vanes (SGVs) (all around rear of the fan blades).
(h) Do a GVI of the fan exit fairing assembly (upper bifi).
(i) Do a GVI of the inner SGV liner segments (all around the inner diameter of the SGVs).
(j) Do a GVI of the outer SGV liner segments (all around the outer diameter of the SGVs).
| EXAMINE | DAMAGE | DISPOSITION |
|---|---|---|
| Fan case front acoustic liner segments | FOD, dents, cracks, delamination or missing material | Do the following visual inspections (Ref. AMM TASK 72-21-01-210-801). |
| Fan case rubstrip segments | FOD, delamination or missing material | Do the following visual inspections (Ref. AMM TASK 72-21-01-220-802). |
| Fan case ice liner | FOD, dents, cracks, delamination or missing material | Do the following visual inspections (Ref. AMM TASK 72-21-01-220-803). |
| Fan case rear acoustic liner segments | FOD, dents, cracks, delamination or missing material | Do the following visual inspections (Ref. AMM TASK 72-21-01-220-801). |
| Fan exit stator | FOD, nicks, dents, tears, cracks or missing material | Do the following visual inspections (Ref. AMM TASK 72-21-07-220-801). |
| Fan exit fairing (splitter) | FOD, dents, cracks or scratches. Missing attachment screws. | Do the following visual inspections (Ref. AMM TASK 72-21-06-220-801). |
| SGVs | FOD, nicks, dents, tears, cracks or missing material | Do the following visual inspections (Ref. AMM TASK 72-21-02-220-801). |
| Fan exit fairing assembly (upper bifi) | FOD, nicks, dents, tears, cracks, loose or missing attachment bolts, missing rubber seals or missing coat | Do the following visual inspections (Ref. AMM TASK 72-21-04-210-801). |
| Inner SGV liner segments | FOD, cracks, nicks, dents, scratches, surface erosion, punctures, holes or missing material and damage to rubber fillet. | Do the following visual inspections (Ref. AMM TASK 72-21-12-220-801). |
| Outer SGV liner segments | FOD, missing liners, cracks, nicks, dents, scratches, surface erosion, punctures, holes or missing material and damage to rubber fillet. | Do the following visual inspections (Ref. AMM TASK 72-21-02-220-803). |
Table - Fan Case Parts - Visual Inspection
(4) Remove the MAT - PROTECTIVE or the 636-1100-3GSE INLET COWL PROTECT COVER from the inlet cowl. (5) Examine the assembly for foreign objects, damage and correct assembly.
Subtask 72-00-00-410-225-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
Subtask 72-00-00-440-125-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 72-00-00-410-226-A ** ON A/C NOT FOR ALL