DOC AIRBUS | AMM A320FLeak Test of the Outer Manhole Cover
TASK 28-28-00-790-003-A
Leak Test of the Outer Manhole Cover
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Expendable Parts
D. Referenced Information
3. Job Set-up
Subtask 28-28-00-860-143-A ** ON A/C NOT FOR ALL
Subtask 28-28-00-860-144-A ** ON A/C NOT FOR ALL
Subtask 28-28-00-410-070-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.02 07:01:55 UTC
Leak Test of the Outer Manhole Cover
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING:
OBEY THE FUEL SAFETY PROCEDURES.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FAB1) | Mineral Oil base Grease-- Vaseline or Petrolatum - |
| (Material No.14QEB1) | Wire-Locking Dia: 0.6 mm CRES Nickel Alloy - |
D. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| TASK 28-00-00-910-001-A | Fuel Safety Procedures |
| TASK 28-11-27-000-001-A | Removal of the Additional Center Tank (ACT) |
| TASK 28-11-27-000-002-A | Removal of Additional Center Tank No.1 (ACT AFT1) |
| TASK 28-11-27-000-003-A | Removal of the Additional Center Tank No.2 (ACT AFT2) |
| TASK 28-28-55-000-001-A | Removal of the ACT Vent Shut-off Valve Actuator |
Blank Flanges and Caps for the ACTSubtask 28-28-00-860-143-A ** ON A/C NOT FOR ALL
A. System Configuration
(1) Safety Precautions
(a) Obey the fuel safety procedure (Ref. AMM TASK 28-00-00-910-001).
(2) Make sure that the ACT is removed from the aircraft (Ref. AMM TASK 28-11-27-000-001).
(3) Make sure that the structural container of the ACT is fully equipped and free of fuel.
Subtask 28-28-00-860-143-C ** ON A/C NOT FOR ALL (1) Safety Precautions
(a) Obey the fuel safety procedure (Ref. AMM TASK 28-00-00-910-001).
(2) Make sure that the ACT is removed from the aircraft (Ref. AMM TASK 28-11-27-000-001).
(3) Make sure that the structural container of the ACT is fully equipped and free of fuel.
A. System Configuration
(1) Safety Precautions
(a) Obey the fuel safety procedure (Ref. AMM TASK 28-00-00-910-001).
(2) Make sure that the applicable ACT is removed from the aircraft (Ref. AMM TASK 28-11-27-000-002) (Ref. AMM TASK 28-11-27-000-003) (Ref. AMM D/O 28-11-27-00).
(3) Make sure that the structural container of the ACT is fully equipped and free of fuel.
Subtask 28-28-00-010-079-A ** ON A/C NOT FOR ALL (1) Safety Precautions
(a) Obey the fuel safety procedure (Ref. AMM TASK 28-00-00-910-001).
(2) Make sure that the applicable ACT is removed from the aircraft (Ref. AMM TASK 28-11-27-000-002) (Ref. AMM TASK 28-11-27-000-003) (Ref. AMM D/O 28-11-27-00).
(3) Make sure that the structural container of the ACT is fully equipped and free of fuel.
B. Get Access
(1) Lift the ACT above the ground to get access to the cavity drain valve in the base plate of the ACT.
Subtask 28-28-00-550-052-A ** ON A/C NOT FOR ALL (1) Lift the ACT above the ground to get access to the cavity drain valve in the base plate of the ACT.
C. Seal the Openings of the ACT
(1) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-120 O-RING (6).
(2) Install the AIPC 28-11-04-05-110 PLUG (7) with the O-ring (6) on the cavity drain port of the ACT.
(3) Install the AIPC 28-11-04-05-100 CAP (19) on the non-return valve on the top surface of the ACT.
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-040 O-RING (3) and a new AIPC 28-11-04-05-060 O-RING (4).
(b) Put the O-rings (3) and (4) in position on the AIPC 28-11-04-05-090 BLANKING FLANGE (2).
(c) Install the blanking flange (2) on the ACT fuel pipe flange.
(d) Install the nuts (1) on the studs (5).
(e) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-040 O-RING (12) and a new AIPC 28-11-04-05-060 O-RING (13).
(f) Put the O-rings (12) and (13) in position on the AIPC 28-11-04-05-030 BLANKING FLANGE (11).
(g) Install the blanking flange (11) on the ACT vent pipe flange.
(h) Install the nuts (10) on the studs (14).
(i) Remove the nuts (8) and disengage the flange (9) from the flange (11).
(j) Discard the O-ring (18) from the flange (9).
(l) Remove the plug (17) and the O-ring (16) from the blanking flange (11) to connect the test equipment to vent pipe flange.
(5) On the aft side of the ACT:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-040 O-RING (3) and a new AIPC 28-11-04-05-060 O-RING (4).
(b) Put the O-rings (3) and (4) in position on the AIPC 28-11-04-05-090 BLANKING FLANGE (2).
(c) Install the blanking flange (2) on the ACT fuel pipe flange and on the ACT vent pipe flange.
(d) Install the nuts (1) on the studs (5).
Subtask 28-28-00-550-052-E ** ON A/C NOT FOR ALL (1) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-120 O-RING (6).
(2) Install the AIPC 28-11-04-05-110 PLUG (7) with the O-ring (6) on the cavity drain port of the ACT.
(3) Install the AIPC 28-11-04-05-100 CAP (19) on the non-return valve on the top surface of the ACT.
NOTE: The designation forward and aft are the given direction when the ACT is installed in the aircraft.
(4) On the forward side of the ACT: (a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-040 O-RING (3) and a new AIPC 28-11-04-05-060 O-RING (4).
(b) Put the O-rings (3) and (4) in position on the AIPC 28-11-04-05-090 BLANKING FLANGE (2).
(c) Install the blanking flange (2) on the ACT fuel pipe flange.
(d) Install the nuts (1) on the studs (5).
(e) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-040 O-RING (12) and a new AIPC 28-11-04-05-060 O-RING (13).
(f) Put the O-rings (12) and (13) in position on the AIPC 28-11-04-05-030 BLANKING FLANGE (11).
(g) Install the blanking flange (11) on the ACT vent pipe flange.
(h) Install the nuts (10) on the studs (14).
(i) Remove the nuts (8) and disengage the flange (9) from the flange (11).
(j) Discard the O-ring (18) from the flange (9).
WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(k) Remove and discard the lockwire from the plug (17). (l) Remove the plug (17) and the O-ring (16) from the blanking flange (11) to connect the test equipment to vent pipe flange.
(5) On the aft side of the ACT:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-040 O-RING (3) and a new AIPC 28-11-04-05-060 O-RING (4).
(b) Put the O-rings (3) and (4) in position on the AIPC 28-11-04-05-090 BLANKING FLANGE (2).
(c) Install the blanking flange (2) on the ACT fuel pipe flange and on the ACT vent pipe flange.
(d) Install the nuts (1) on the studs (5).
C. Seal the openings of the applicable ACT
(1) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-27-21-110 O-RING (6)AIPC 28-11-27-21-110 O-RING (6).
(2) Install the AIPC 28-11-27-21-100 PLUG (7)AIPC 28-11-27-21-100 PLUG (7) with the O-ring (6) on the cavity drain port of the ACT.
(3) Install the AIPC 28-11-84-05-130 CAP (19)AIPC 28-11-82-46-100 CAP (19) on the non return valve on the top surface of the ACT.
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-84-05-043 O-RING (3)AIPC 28-11-82-46-040 O-RING (3) and a new AIPC 28-11-84-05-063 O-RING (4)AIPC 28-11-82-46-060 O-RING (4).
(b) Put the O-rings (3) and (4) in position on the AIPC 28-11-84-05-093 BLANKING FLANGE (2)AIPC 28-11-82-46-090 BLANKING FLANGE (2).
(c) Install the blanking flange (2) on the ACT fuel pipe flange.
(d) Install the nuts (1) on the studs (5).
(e) TORQUE the nuts (1) opposite to each other to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )
.
(f) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-84-05-043 O-RING (12)AIPC 28-11-82-46-040 O-RING (12) and a new AIPC 28-11-84-05-063 O-RING (13)AIPC 28-11-82-46-060 O-RING (13).
(g) Put the O-rings (12) and (13) in position on the AIPC 28-11-84-05-030 BLANKING FLANGE (11)AIPC 28-11-82-46-030 BLANKING FLANGE (11).
(h) Install the blanking flange (11) on the ACT vent pipe flange.
(i) Install the nuts (10) on the studs (14).
(j) TORQUE the nuts (10) opposite to each other to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in ).
(k) Remove the nuts (8) and disengage the flange (9) from the flange (11).
(l) Discard the O-ring (18) from the flange (9).
(n) Remove the plug (17) and the O-ring (16) from the blanking flange (11) to connect the test equipment to vent pipe flange.
(5) On the aft side of the ACT:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-84-05-043 O-RING (3)AIPC 28-11-82-46-040 O-RING (3) and a new AIPC 28-11-84-05-063 O-RING (4)AIPC 28-11-82-46-060 O-RING (4).
(b) Put the O-rings (3) and (4) in position on the AIPC 28-11-84-05-093 BLANKING FLANGE (2)AIPC 28-11-82-46-090 BLANKING FLANGE (2).
(c) Install the blanking flange (2) on the ACT fuel pipe flange and on the ACT vent pipe flange.
(d) Install the nuts (1) on the studs (5).
(e) TORQUE the nuts (1) opposite to each other to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in ).
4. Procedure(1) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-27-21-110 O-RING (6)AIPC 28-11-27-21-110 O-RING (6).
(2) Install the AIPC 28-11-27-21-100 PLUG (7)AIPC 28-11-27-21-100 PLUG (7) with the O-ring (6) on the cavity drain port of the ACT.
(3) Install the AIPC 28-11-84-05-130 CAP (19)AIPC 28-11-82-46-100 CAP (19) on the non return valve on the top surface of the ACT.
NOTE: The designation forward and aft are the given direction when the ACT is installed in the aircraft.
(4) On the forward side of the ACT: (a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-84-05-043 O-RING (3)AIPC 28-11-82-46-040 O-RING (3) and a new AIPC 28-11-84-05-063 O-RING (4)AIPC 28-11-82-46-060 O-RING (4).
(b) Put the O-rings (3) and (4) in position on the AIPC 28-11-84-05-093 BLANKING FLANGE (2)AIPC 28-11-82-46-090 BLANKING FLANGE (2).
(c) Install the blanking flange (2) on the ACT fuel pipe flange.
(d) Install the nuts (1) on the studs (5).
(e) TORQUE the nuts (1) opposite to each other to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )
. (f) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-84-05-043 O-RING (12)AIPC 28-11-82-46-040 O-RING (12) and a new AIPC 28-11-84-05-063 O-RING (13)AIPC 28-11-82-46-060 O-RING (13).
(g) Put the O-rings (12) and (13) in position on the AIPC 28-11-84-05-030 BLANKING FLANGE (11)AIPC 28-11-82-46-030 BLANKING FLANGE (11).
(h) Install the blanking flange (11) on the ACT vent pipe flange.
(i) Install the nuts (10) on the studs (14).
(j) TORQUE the nuts (10) opposite to each other to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )
. (k) Remove the nuts (8) and disengage the flange (9) from the flange (11).
(l) Discard the O-ring (18) from the flange (9).
WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(m) Remove and discard the lockwire from the plug (17). (n) Remove the plug (17) and the O-ring (16) from the blanking flange (11) to connect the test equipment to vent pipe flange.
(5) On the aft side of the ACT:
(a) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-84-05-043 O-RING (3)AIPC 28-11-82-46-040 O-RING (3) and a new AIPC 28-11-84-05-063 O-RING (4)AIPC 28-11-82-46-060 O-RING (4).
(b) Put the O-rings (3) and (4) in position on the AIPC 28-11-84-05-093 BLANKING FLANGE (2)AIPC 28-11-82-46-090 BLANKING FLANGE (2).
(c) Install the blanking flange (2) on the ACT fuel pipe flange and on the ACT vent pipe flange.
(d) Install the nuts (1) on the studs (5).
(e) TORQUE the nuts (1) opposite to each other to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )
. Subtask 28-28-00-860-144-A ** ON A/C NOT FOR ALL
A. Preparation for the Test
(1) Open the Vent Valve of the ACT:
(a) Remove the Vent Shut-off Valve Actuator (4QH) from the ACT (Ref. AMM TASK 28-28-55-000-001).
(b) Use a screwdriver to open the vent valve.
(c) Make sure that the indicator of the valve shows the open position (in line).
(2) Connect an AIR SOURCE 0,3 BAR (4,38 PSI) regulated pressure maximum with a LOCALLY MANUFACTURED - ADAPTER to the cavity drain port of the ACT.
(3) Connect an AIR SOURCE 0.5 TO 1 BAR (9 TO 15 PSI) - FILTERED, DRY regulated pressure maximum ADAPTER - EXTENSION, FILLING SYSTEM, DRY AIR to the bleed port in the vent-pipe blanking-cap.
Subtask 28-28-00-860-144-E ** ON A/C NOT FOR ALL (1) Open the Vent Valve of the ACT:
(a) Remove the Vent Shut-off Valve Actuator (4QH) from the ACT (Ref. AMM TASK 28-28-55-000-001).
(b) Use a screwdriver to open the vent valve.
(c) Make sure that the indicator of the valve shows the open position (in line).
(2) Connect an AIR SOURCE 0,3 BAR (4,38 PSI) regulated pressure maximum with a LOCALLY MANUFACTURED - ADAPTER to the cavity drain port of the ACT.
(3) Connect an AIR SOURCE 0.5 TO 1 BAR (9 TO 15 PSI) - FILTERED, DRY regulated pressure maximum ADAPTER - EXTENSION, FILLING SYSTEM, DRY AIR to the bleed port in the vent-pipe blanking-cap.
A. Preparation for the Test
(1) If you do the test on the ACT FWD, open the vent isolation valve 232QM:
(a) Remove ACT vent-isolation-valve actuator 93QH from the ACT FWD (Ref. AMM D/O 28-28-57-00).
(b) Use a screwdriver to open the vent valve.
(c) Make sure that the indicator of the valve shows open position (in line).
(2) Connect an AIR SOURCE 0,3 BAR (4,38 PSI) regulated pressure maximum together with a LOCALLY MANUFACTURED - ADAPTER to the cavity drain port (2).
(3) Connect an AIR SOURCE 0,3 BAR (4,38 PSI) regulated pressure maximum together with an ADAPTER - EXTENSION, FILLING SYSTEM, DRY AIR to the bleed port on the blanking flange (11) of the ACT vent line
Subtask 28-28-00-790-052-A ** ON A/C NOT FOR ALL (1) If you do the test on the ACT FWD, open the vent isolation valve 232QM:
(a) Remove ACT vent-isolation-valve actuator 93QH from the ACT FWD (Ref. AMM D/O 28-28-57-00).
(b) Use a screwdriver to open the vent valve.
(c) Make sure that the indicator of the valve shows open position (in line).
(2) Connect an AIR SOURCE 0,3 BAR (4,38 PSI) regulated pressure maximum together with a LOCALLY MANUFACTURED - ADAPTER to the cavity drain port (2).
(3) Connect an AIR SOURCE 0,3 BAR (4,38 PSI) regulated pressure maximum together with an ADAPTER - EXTENSION, FILLING SYSTEM, DRY AIR to the bleed port on the blanking flange (11) of the ACT vent line
B. Leak Test
5. Close-up| ACTION | RESULT |
|---|---|
1.On the vent line connection of the ACT:
| On the pressure gauge at the vent line connection:
|
2.On the cavity drain port connection of the ACT:
| On the pressure gauge at the cavity drain port connection:
NOTE: Too high air pressure with more than 275 mbar (3.99 psi) in the interspaces of an ACT can cause damage on the rubber bladder tank.
|
| 3.Apply a SOLUTION - LEAK DETECTION on the structure interfaces of the manhole cover to find possible leaks. | Make sure there are no leaks of air on the outer manhole cover. NOTE: If you find leaks of air, you must do an approved repair. |
4.On the cavity drain port connection of the ACT:
| On the pressure gauge at the cavity drain port connection:
|
5.On the vent line connection of the ACT:
| On the pressure gauge at the vent line connection:
|
Subtask 28-28-00-410-070-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-080 O-RING (16) and to a new AIPC 28-11-04-05-040 O-RING (18).
(2) Install the AIPC 28-11-04-05-070 PLUG (17) with the new O-ring (16) on the blanking flange (11).
14QEB1 Wire-Locking Dia: 0.6 mm CRES Nickel Alloy -
(4) Put the O-ring (18) in position on the AIPC 28-11-04-05-010 FLANGE (9).
(5) Install the flange (9) on the blanking flange (11).
(6) Install the nuts (8) on the studs (15).
(7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(8) Do an inspection of the component interfaces and the adjacent area.
(9) Close the Vent Valve of the ACT with a screwdriver.
(10) Make sure that the position indicator of the valve shows the closed position (cross line).
(11) Make sure that the work area is clean and clear of tools and other items.
Subtask 28-28-00-410-070-F ** ON A/C NOT FOR ALL (1) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) to a new AIPC 28-11-04-05-080 O-RING (16) and to a new AIPC 28-11-04-05-040 O-RING (18).
(2) Install the AIPC 28-11-04-05-070 PLUG (17) with the new O-ring (16) on the blanking flange (11).
WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(3) Install (4) Put the O-ring (18) in position on the AIPC 28-11-04-05-010 FLANGE (9).
(5) Install the flange (9) on the blanking flange (11).
(6) Install the nuts (8) on the studs (15).
(7) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(8) Do an inspection of the component interfaces and the adjacent area.
(9) Close the Vent Valve of the ACT with a screwdriver.
(10) Make sure that the position indicator of the valve shows the closed position (cross line).
(11) Make sure that the work area is clean and clear of tools and other items.
A. Close Access
(1) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-84-05-080 O-RING (16)AIPC 28-11-82-46-080 O-RING (16) and to a new AIPC 28-11-84-05-043 O-RING (18)AIPC 28-11-82-46-040 O-RING (18).
(2) Install the AIPC 28-11-84-05-073 PLUG (17)AIPC 28-11-82-46-070 PLUG (17) with the new O-ring (16) on the blanking flange (11).
14QEB1 Wire-Locking Dia: 0.6 mm CRES Nickel Alloy -
(4) Put the O-ring (18) in position on the AIPC 28-11-84-05-010 FLANGE (9)AIPC 28-11-82-46-010 FLANGE (9).
(5) Install the flange (9) on the blanking flange (11).
(6) Install the nuts (8) on the studs (15).
(7) TORQUE the nuts (8) opposite to each other to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in ).
(8) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(9) Do an inspection of the component interfaces and the adjacent area.
(10) If you did the test on the ACT FWD:
(a) Close the vent isolation valve of the ACT with a screwdriver.
(b) Make sure that the position indicator of valve shows the close position (cross line).
(c) Install the vent isolation-valve actuator (93QH) on the ACT FWD (Ref. AMM D/O 28-28-57-40).
(11) Make sure that the work area is clean and clear of tools and other items.
(1) Apply a thin layer of Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on a new AIPC 28-11-84-05-080 O-RING (16)AIPC 28-11-82-46-080 O-RING (16) and to a new AIPC 28-11-84-05-043 O-RING (18)AIPC 28-11-82-46-040 O-RING (18).
(2) Install the AIPC 28-11-84-05-073 PLUG (17)AIPC 28-11-82-46-070 PLUG (17) with the new O-ring (16) on the blanking flange (11).
WARNING:
USE PROTECTIVE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
(3) Install (4) Put the O-ring (18) in position on the AIPC 28-11-84-05-010 FLANGE (9)AIPC 28-11-82-46-010 FLANGE (9).
(5) Install the flange (9) on the blanking flange (11).
(6) Install the nuts (8) on the studs (15).
(7) TORQUE the nuts (8) opposite to each other to between 1.06 and 0.82 m.daN (93.81 and 72.57 lbf.in )
. (8) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(9) Do an inspection of the component interfaces and the adjacent area.
(10) If you did the test on the ACT FWD:
(a) Close the vent isolation valve of the ACT with a screwdriver.
(b) Make sure that the position indicator of valve shows the close position (cross line).
(c) Install the vent isolation-valve actuator (93QH) on the ACT FWD (Ref. AMM D/O 28-28-57-40).
(11) Make sure that the work area is clean and clear of tools and other items.