Installation of the Blade Seal of the Outboard Flap
TASK 27-54-62-400-802-A
Installation of the Blade Seal of the Outboard Flap
Self explanatory
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 27-54-62-941-066-A
Subtask 27-54-62-410-060-A
[Rev.10 from 2021]
2026.03.31 23:55:03 UTC
Installation of the Blade Seal of the Outboard Flap
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
WARNING:
MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
1. Reason for the Job- DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
- DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
- MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 3M (10 FT) |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | 1 | SCRAPER - NON METALLIC |
| No specific | AR | WARNING NOTICE(S) |
| 98D27803000000 | 1 | LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06ABB1) | Polysulfide Sealant-Fuel Tank Fillet - |
| (Material No.06LCG9) | Non Hardening Jointing Putty-Medium Temp. Area - - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.08BBF1) | Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 587 | FLAP N° 2 |
| 687 | FLAP N° 2 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 27-50-00-866-008-A | Extension of the Flaps on the Ground |
| TASK 27-50-00-866-008-A-01 | Extension of the Flaps/Slats on the Ground |
| TASK 27-50-00-866-009-A | Retraction of the Flaps on the Ground |
| TASK 27-50-00-866-009-A-01 | Retraction of the Flaps/Slats on the Ground |
Subtask 27-54-62-941-066-A
A. Safety Precautions
(1) Make sure that the SAFETY BARRIER(S) are in position.
(2) Make sure that the WARNING NOTICE(S) are in the cockpit to tell persons not to operate:
Subtask 27-54-62-860-067-A (1) Make sure that the SAFETY BARRIER(S) are in position.
(2) Make sure that the WARNING NOTICE(S) are in the cockpit to tell persons not to operate:
- The flight controls
- The hydraulic system.
B. Aircraft Maintenance Configuration
(2) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the slat/flap control lever.
Subtask 27-54-62-865-072-A WARNING:
MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(1) Make sure that the flaps are fully extended (Ref. AMM TASK 27-50-00-866-008). (2) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the slat/flap control lever.
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 27-54-62-010-058-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
D. Get Access
(1) Make sure that the ACCESS PLATFORM 3M (10 FT) is below the applicable outboard flap.
4. Procedure(1) Make sure that the ACCESS PLATFORM 3M (10 FT) is below the applicable outboard flap.
CAUTION:
BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:
Subtask 27-54-62-420-099-A - DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
- DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
- MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.
A. Preparation for Installation
(1) If necessary, remove the sealant from the cover strip (2) and the outboard flap (6) with a SCRAPER - NON METALLIC.
(2) Clean the component interface and/or the adjacent area with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Clean the screws (3) and (5) with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - (Material No.08BBF1) .
(4) Make sure that the parts retained from the removed component are clean and in the correct condition.
(5) Do an inspection of the component interfaces and the adjacent area.
Subtask 27-54-62-420-100-A (1) If necessary, remove the sealant from the cover strip (2) and the outboard flap (6) with a SCRAPER - NON METALLIC.
(2) Clean the component interface and/or the adjacent area with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(3) Clean the screws (3) and (5) with a clean Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner_- Methyl-Ethyl-Ketone - (Material No.08BBF1) .
(4) Make sure that the parts retained from the removed component are clean and in the correct condition.
(5) Do an inspection of the component interfaces and the adjacent area.
B. Installation of the Blade Seal of the Outboard Flap
(1) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the screws (3) and (5).
(2) Put the blade seal (1) and the cover strip (2) on the outboard end of the outboard flap (6). After installation of these items, hold them in position for the next step.
(3) Install the screws (3), (4) and (5).
(4) Do the adjustment of the blade seal (1):
(a) Make sure that dimension M is between 27.4 mm (1.08 in.) and 39.4 mm (1.55 in.).
(b) Make sure that dimension N is 8 mm (0.31 in.).
(c) If necessary, loosen the screws (3), (4) and (5) and move the blade seal (1) until dimension N is 8 mm (0.31 in.).
(5) Tighten the screws (3), (4) and (5) until the blade seal (1) is compressed but not out of shape.
(6) Apply a bead of the Polysulfide Sealant-Fuel Tank Fillet - (Material No.06ABB1) between the cover strip (2) and the outboard flap (6).
5. Close-up(1) Apply Non Hardening Jointing Putty-Medium Temp. Area - - (Material No.06LCG9) to the screws (3) and (5).
(2) Put the blade seal (1) and the cover strip (2) on the outboard end of the outboard flap (6). After installation of these items, hold them in position for the next step.
(3) Install the screws (3), (4) and (5).
(4) Do the adjustment of the blade seal (1):
(a) Make sure that dimension M is between 27.4 mm (1.08 in.) and 39.4 mm (1.55 in.).
(b) Make sure that dimension N is 8 mm (0.31 in.).
(c) If necessary, loosen the screws (3), (4) and (5) and move the blade seal (1) until dimension N is 8 mm (0.31 in.).
(5) Tighten the screws (3), (4) and (5) until the blade seal (1) is compressed but not out of shape.
(6) Apply a bead of the Polysulfide Sealant-Fuel Tank Fillet - (Material No.06ABB1) between the cover strip (2) and the outboard flap (6).
Subtask 27-54-62-410-060-A
A. Close Access
(1) Remove the access platform(s).
Subtask 27-54-62-865-070-A (1) Remove the access platform(s).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 27-54-62-860-068-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B07 |
| ** ON A/C NOT FOR ALL | |||
| 49VU | FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1 | 6CV | B02 |
| ** ON A/C ALL | |||
| 121VU | FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2 | 8CV | Q21 |
C. Aircraft Maintenance Configuration
(2) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the slat/flap control lever.
(3) Fully retract the flaps (Ref. AMM TASK 27-50-00-866-009).
Subtask 27-54-62-942-059-A WARNING:
MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(1) Make sure that the work area is clean and clear of tools and other items.(2) Remove the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION from the slat/flap control lever.
(3) Fully retract the flaps (Ref. AMM TASK 27-50-00-866-009).
D. Removal of Equipment
(1) Remove the WARNING NOTICE(S).
(2) Remove the safety barriers.
(1) Remove the WARNING NOTICE(S).
(2) Remove the safety barriers.
Blade Seal of the Outboard Flap - Adjustment