General Visual Inspection of the Outer Fixed Structure Fire Seals [CFML]
TASK 78-32-00-210-825-A
General Visual Inspection of the Outer Fixed Structure Fire Seals
Refer to the MPD TASK: 783200-L4
GENERAL VISUAL INSPECTION OF OUTER FIXED STRUCTURE SEALS.
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 78-32-00-941-122-A
Subtask 78-32-00-210-111-A
Subtask 78-32-00-440-114-A
[Rev.10 from 2021]
2026.04.01 03:35:53 UTC
General Visual Inspection of the Outer Fixed Structure Fire Seals
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobRefer to the MPD TASK: 783200-L4
GENERAL VISUAL INSPECTION OF OUTER FIXED STRUCTURE SEALS.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.CPNCL02069) | LINT-FREE COTTON CLOTH |
| (Material No.CPNCL02589) | GENERAL CLEANING AGENT - MULTI PURPOSE |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2) | |
| 447AL, 448AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-803-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-803-A | Closing of the Fan Cowl Doors |
| TASK 78-30-00-040-807-A | Deactivation of the Thrust Reverser System for Nacelle Maintenance (ICU) |
| TASK 78-30-00-440-807-A | Reactivation of the Thrust Reverser System after Nacelle Maintenance (ICU) |
| TASK 78-32-65-000-802-A | Removal of the Inner and Outer Fixed Structure Seals |
| TASK 78-32-65-400-802-A | Installation of the Inner and Outer Fixed Structure Seals |
Subtask 78-32-00-941-122-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 a WARNING NOTICE(S) in position to tell persons not to operate:
(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).
Subtask 78-32-00-010-184-A (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 a WARNING NOTICE(S) in position to tell persons not to operate:
- The ENG/MODE selector switch
- The ENG/MASTER 1(2) control switch.
(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).
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
Subtask 78-32-00-040-122-A (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
C. Deactivation of the Thrust Reverser System for Maintenance
(2) Open the 6 o'clock rear latch access door:
(a) Push the door latches on the latch access door and carefully open the 6 o'clock rear latch access door.
4. ProcedureWARNING:
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 nacelle maintenance (Ref. AMM TASK 78-30-00-040-807). (2) Open the 6 o'clock rear latch access door:
(a) Push the door latches on the latch access door and carefully open the 6 o'clock rear latch access door.
Subtask 78-32-00-210-111-A
A. General Visual Inspection of Outer Fixed Structure Fire Seals
5. Close-upNOTE: If necessary, clean the outer fixed structure fire seals (1) and (2) with a LINT-FREE COTTON CLOTH (Material No.CPNCL02069) made moist with a GENERAL CLEANING AGENT - MULTI PURPOSE (Material No.CPNCL02589) .
(1) Do a visual inspection of the outer fixed structure fire seals (1) and (2) for: - Damage
- Tear
- Cracks
- Wear
- Missing part.
Subtask 78-32-00-440-114-A
A. Do the reactivation of the thrust reverser system after nacelle maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 78-32-00-410-175-A B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the 6 o'clock rear latch access door:
(a) Push up the 6 o'clock rear latch access door.
(b) Push on the door latch button to close the door latches.
(c) Make sure that the door latches are engaged correctly.
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(4) Remove the WARNING NOTICE(S).
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the 6 o'clock rear latch access door:
(a) Push up the 6 o'clock rear latch access door.
(b) Push on the door latch button to close the door latches.
(c) Make sure that the door latches are engaged correctly.
(3) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
(4) Remove the WARNING NOTICE(S).
General Visual Inspection of the Outer Fixed Structure Fire Seals