DOC AIRBUS | AMM A320FVisually Examine the Mixed Exhaust System [IAE]
TASK 78-10-00-200-012-A
Visually Examine the Mixed Exhaust System
This task gives the data for a general check of the mixed exhaust system without component removal.
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 78-10-00-941-052-A ** ON A/C NOT FOR ALL
Subtask 78-10-00-210-052-A ** ON A/C NOT FOR ALL
Subtask 78-10-00-410-055-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:26:57 UTC
Visually Examine the Mixed Exhaust System
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobThis task gives the data for a general check of the mixed exhaust system without component removal.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.V01-002) | cleaning fluid (trichloroethane, inhibited and stabilized) |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 71-13-00-410-010-A | Closing of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance |
| TASK 78-30-00-440-012-A | Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance |
| TASK 78-32-00-010-010-A | Opening of the Thrust Reverser Halves |
| TASK 78-32-00-410-010-A | Closing of the Thrust Reverser Halves |
Mixed Exhaust SystemSubtask 78-10-00-941-052-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).
Subtask 78-10-00-010-054-A ** ON A/C NOT FOR ALL (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).
B. Get Access
(1) Open the fan cowls doors (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 2M (6 FT) in position.
Subtask 78-10-00-040-052-A ** ON A/C NOT FOR ALL (1) Open the fan cowls doors (Ref. AMM TASK 71-13-00-010-010):
(a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
(b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
(2) Put the ACCESS PLATFORM 2M (6 FT) in position.
C. Deactivate the Thrust Reverser
Subtask 78-10-00-010-055-A ** ON A/C NOT FOR ALL WARNING:
MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(1) Deactivate the thrust reverser Hydraulic Control Unit (HCU) (Ref. AMM TASK 78-30-00-040-012). D. Open the Thrust Reverser Halves (Ref. AMM TASK 78-32-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 78-10-00-110-052-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(2) FOR [1000EM2] (ENGINE-2)
461AL 462AR
E. Clean Components
(1) Clean the mixed exhaust system components which follow with a Textile-Lint free Cotton - (Material No.14SBA1) made moist withV01-002 cleaning fluid (trichloroethane, inhibited and stabilized)
(a) Pen nib fairing (CN17).
(b) Acoustic panel (CN5b).
(c) Side support struts (CN7).
(d) Lower support strut (CN3).
(e) Forward attach ring (CN1).
(f) Engine exhaust cone (CN9, CN12).
(g) Inco jet pipe (CN10).
4. Procedure(1) Clean the mixed exhaust system components which follow with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with
(a) Pen nib fairing (CN17).
(b) Acoustic panel (CN5b).
(c) Side support struts (CN7).
(d) Lower support strut (CN3).
(e) Forward attach ring (CN1).
(f) Engine exhaust cone (CN9, CN12).
(g) Inco jet pipe (CN10).
Subtask 78-10-00-210-052-A ** ON A/C NOT FOR ALL
A. Examine the Mixed Exhaust System
(1) Examine the forward attach ring (CN1) for any obvious damage.
(a) Cracks, gouge, nick and scratch:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(b) Loose or missing rivet and missing nut plate:
1 Loose or missing rivet and missing nut plate - not allowed.
(2) Examine the inner annulus outer skin (CN2) for any obvious damage.
(a) Dent, gouge, nick, scratch and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(b) Loose or missing rivet and missing nut plate:
1 Loose or missing rivet and missing nut plate - not allowed.
(3) Examine the lower strut (CN3) for any obvious damage.
(a) Dent, gouge, nick, scratch and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(4) Examine the upper strut (CN4) for any obvious damage.
(a) Dent, gouge, nick, scratch and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(5) Examine the outer barrel-outer solid skin (CN5a) for obvious damage.
(a) Dent, gouge, nick, scratch, disbond, lighting strike and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(6) Examine the outer barrel-inner perforated skin (CN5b1 and CN5b2) for obvious damage.
(a) Dent, gouge, nick, scratch, disbond and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(7) Examine the vectored exit nozzle inner skin (CN6) and outer skin (CN8) for obvious damage.
(a) Dent, gouge, nick, scratch, lighting strike and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(b) Loose or missing rivet:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.C.(2).
(8) Examine the side struts (CN7) for any obvious damage.
(a) Dent, gouge, nick, scratch and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(9) Examine the tail cone (CN9 and CN12) for any obvious damage.
(a) Dent, gouge, nick, scratch, disbond and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(10) Examine the jet pipe (CN10 and CN16) for any obvious damage.
(a) Dent, gouge, nick, scratch, disbond and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(11) Examine the rob blocks (CN11) for any obvious damage.
(a) Missing worn or damaged:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B.(3), table 101.
(12) Examine the non-vectored exit nozzle inner skin (CN14) and outer skin (CN15) for any obvious damage.
(a) Dent, gouge, nick, scratch, lightning strike and crack:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
(b) Loose or missing rivet:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.C.(2).
(13) Examine the pen nib fairing (CN17) for any obvious damage, cracks or loose or missing fasteners.
(a) Loose or missing rivet:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.C.(1).
(b) Cracks, dent, gouge, nick and scratch:
1 Refer toNSRM 544000 , Common Nozzle Assembly (CNA) and exhaust cone allowable damage, paragraph 3.B., table 101.
5. Close-up(1) Examine the forward attach ring (CN1) for any obvious damage.
(a) Cracks, gouge, nick and scratch:
1 Refer to
(b) Loose or missing rivet and missing nut plate:
1 Loose or missing rivet and missing nut plate - not allowed.
(2) Examine the inner annulus outer skin (CN2) for any obvious damage.
(a) Dent, gouge, nick, scratch and crack:
1 Refer to
(b) Loose or missing rivet and missing nut plate:
1 Loose or missing rivet and missing nut plate - not allowed.
(3) Examine the lower strut (CN3) for any obvious damage.
(a) Dent, gouge, nick, scratch and crack:
1 Refer to
(4) Examine the upper strut (CN4) for any obvious damage.
(a) Dent, gouge, nick, scratch and crack:
1 Refer to
(5) Examine the outer barrel-outer solid skin (CN5a) for obvious damage.
(a) Dent, gouge, nick, scratch, disbond, lighting strike and crack:
1 Refer to
(6) Examine the outer barrel-inner perforated skin (CN5b1 and CN5b2) for obvious damage.
(a) Dent, gouge, nick, scratch, disbond and crack:
1 Refer to
(7) Examine the vectored exit nozzle inner skin (CN6) and outer skin (CN8) for obvious damage.
(a) Dent, gouge, nick, scratch, lighting strike and crack:
1 Refer to
(b) Loose or missing rivet:
1 Refer to
(8) Examine the side struts (CN7) for any obvious damage.
(a) Dent, gouge, nick, scratch and crack:
1 Refer to
(9) Examine the tail cone (CN9 and CN12) for any obvious damage.
(a) Dent, gouge, nick, scratch, disbond and crack:
1 Refer to
(10) Examine the jet pipe (CN10 and CN16) for any obvious damage.
(a) Dent, gouge, nick, scratch, disbond and crack:
1 Refer to
(11) Examine the rob blocks (CN11) for any obvious damage.
(a) Missing worn or damaged:
1 Refer to
(12) Examine the non-vectored exit nozzle inner skin (CN14) and outer skin (CN15) for any obvious damage.
(a) Dent, gouge, nick, scratch, lightning strike and crack:
1 Refer to
(b) Loose or missing rivet:
1 Refer to
(13) Examine the pen nib fairing (CN17) for any obvious damage, cracks or loose or missing fasteners.
(a) Loose or missing rivet:
1 Refer to
(b) Cracks, dent, gouge, nick and scratch:
1 Refer to
Subtask 78-10-00-410-055-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 halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 78-10-00-440-052-A ** ON A/C NOT FOR ALL Subtask 78-10-00-410-054-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 halves (Ref. AMM TASK 78-32-00-410-010):
(a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
(b) FOR [1000EM2] (ENGINE-2)
461AL 462AR