W DOC AIRBUS | AMM A320F

Installation of the Nacelle Anti-Ice (NAI) Pressure Sensors and Sense Lines

TASK 30-21-11-400-801-A
Installation of the Nacelle Anti-Ice (NAI) Pressure Sensors and Sense Lines

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.
FIN: 4002DN
FIN: 4003DN
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 1M(3 FT)
No specific
1
PLIERS - JAWED, SOFT
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 0.38 and 0.32 m.daN (33.63 and 28.32 lbf.in ) T
No specific
Torque wrench: range to between 0.43 and 0.37 m.daN (38.05 and 32.74 lbf.in ) T
No specific
Torque wrench: range to between 0.41 and 0.38 m.daN (36.28 and 33.63 lbf.in ) T
No specific
Torque wrench: range to between 0.67 and 0.58 m.daN (59.29 and 51.33 lbf.in ) T
No specific
Torque wrench: range to between 0.76 and 0.64 m.daN (67.26 and 56.64 lbf.in ) T
No specific
Torque wrench: range to between 0.79 and 0.68 m.daN (69.91 and 60.18 lbf.in ) T
No specific
Torque wrench: range to between 1.40 and 1.19 m.daN (123.89 and 105.31 lbf.in ) T
No specific
Torque wrench: range to between 1.43 and 1.23 m.daN (126.55 and 108.85 lbf.in ) T
No specific
Torque wrench: range to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T
No specific
Torque wrench: range to between 6.10 and 5.20 m.daN (44.99 and 38.35 lbf.ft ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CPNCL00062)
LUBRICATING OIL TURBINE ENGINE SYNT BASE
(Material No.CPNCL00963)
silicon adhesive sealant RTV106
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR, 461AL, 462AR
 D. Referenced Information
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 73-29-00-710-802-A
FADEC Test (Menu Mode)
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 78-36-00-010-806-A
Opening of the Thrust Reverser Cowl Doors
TASK 78-36-00-410-806-A
Closing of the Thrust Reverser Cowl Doors
ESPM 2055500
F Nacelle Anti-Ice (NAI) Pressure Sensors and Sense Lines
F LPTACC Duct and Bracket, Elbow Duct and Pylon Drain Line
3. Job Set-up
Subtask 30-21-11-941-051-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) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
  • The ENG/MODE selector switch, and
  • The ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
Subtask 30-21-11-865-051-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENGINE 1)
122VUANTI ICE/ENG/11DN1X10
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENGINE 2)
122VUANTI ICE/ENG/21DN2W10
Subtask 30-21-11-010-052-A
C. Get Access
   (1) Make sure that the fan cowl doors are open (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 30-21-11-040-051-A
D. Deactivation of the Thrust Reverser System for Maintenance
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) Make sure that you did the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-807).
Subtask 30-21-11-010-053-A
E. Get Access
   (1) Make sure that the thrust reverser cowl-doors are open (Ref. AMM TASK 78-36-00-010-806):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
   (2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
4. Procedure
Subtask 30-21-11-420-050-A
A. Installation of the Nacelle Anti-Ice (NAI) Pressure Sensors and Sense Lines
   (1) Remove all COVER - PROTECTION and CAP - PROTECTION from the openings, tubes, hoses and connectors.
   (2) Install the tube (54) as follows:
     (a) Lubricate the threads of the coupling nuts and of the ferrules on the tube (54) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Put the tube (54) in position on the NAI tube (53) and connect the coupling nut to the NAI tube (53) hand-tight.
     (c) TORQUE the coupling nut that connects the tube (54) to the NAI tube (53)
to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
   (3) Install the tube (51) as follows:
     (a) Put the tube (51) in position on the tube (54) and adjacent to the brackets (31), (33) and (34). Then connect the coupling nut on the tube (54) to the tube (51) hand-tight.
     (b) Lubricate the threads of the bolts (30), (32) and (35) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (c) Install the bolt (30) to attach the P-clamp (29) and the tube (51) to the bracket (31).
     (d) Install the bolt (32) to attach the P-clamp (52) and the tube (51) to the bracket (33).
     (e) Install the bolt (35) to attach the P-clamp (50) and the tube (51) to the bracket (34).
     (f) Put the P-clamps (29), (50) and (52) in position to hold the tube (51) with the minimum possible force on the tube (51).
     (g) TORQUE the coupling nut that connects the tube (54) to the tube (51) to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (h) TORQUE the bolts (30), (32) and (35) to between 0.67 and 0.58 m.daN (59.29 and 51.33 lbf.in ) T.
   (4) Install the drain line (70) onto the High Pressure Turbine (HPT) case as follows:
     (a) Lubricate the threads of the tube (88), drain-pylon tube (89), B-nuts (71) and (72) on the drain line (70) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Put the B-nut (72) in position on the drain-pylon tube (89) and tighten it with your hand. Put the B-nut (71) in position on the tube (88) and tighten it with your hand.
     (c) Lubricate the threads of the bolts (73), (76) and (79) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (d) Put the drain line (70) on the HPT case between the 8:15 and 11:30 position, aft looking forward.
     (e) Install the bolt (73) to attach the P-clamp (74) and the drain line (70) on the support bracket (75).
     (f) Install the bolt (76) to attach the P-clamp (77) and the drain line (70) on the support bracket (78).
     (g) Install the bolt (79) to attach the P-clamp (80) and the drain line (70) on the support bracket (81).
     (h) TORQUE the B-nuts (71) and (72) that connect the drain line (70) to the tube (88) and the drain-pylon tube (89) to between 6.10 and 5.20 m.daN (44.99 and 38.35 lbf.ft ) T.
     (i) TORQUE the bolts (73), (76) and (79) to between 0.67 and 0.58 m.daN (59.29 and 51.33 lbf.in ) T.
   (5) Install the Low Pressure Turbine Active Clearance Control (LPTACC) support bracket (66) as follows:
     (a) Lubricate the threads of the bolts (67), (68) and (69) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Install the two bolts (67) to attach the LPTACC support bracket (66).
     (c) Install the bolt (68) to attach the LPTACC support bracket (66).
     (d) Install the bolt (69) to attach the LPTACC support bracket (66).
     (e) TORQUE the bolts (67), (68) and (69) to between 1.40 and 1.19 m.daN (123.89 and 105.31 lbf.in ) T.
   (6) Install the wye aft valve LPTACC duct (58) as follows:
     (a) Put the hose clamps (60) and (61) in position on the LPTACC duct (58).
     (b) Put and hold the LPTACC duct (58) in position between the LPTACC valve (84) and the air ducts (86) and (85).
     (c) Connect the LPTACC duct (58) to the air duct (86) with hose clamp (61) and to the air duct (85) with hose clamp (60) and tighten the clamps with your hand.
     (d) Connect the LPTACC duct (58) to the LPTACC valve (84) with the hose clamp (59).
     (e) Make sure that the LPTACC duct (58) is not under strain.
     (f) TORQUE the bolts of the hose clamps (60), (61) and (59) to between 0.41 and 0.38 m.daN (36.28 and 33.63 lbf.in ) T.
   (7) Install the elbow duct (55) as follows:
     (a) Put the hose clamps (56) and (57) in position on the elbow duct (55).
     (b) Put the elbow duct (55) between the valve (82) and the High Pressure Turbine Active Clearance Control (HPTACC) air manifold (83).
     (c) Connect the elbow duct (55) to the valve (82) with the hose clamp (56) and to the HPTACC air manifold (83) with the hose clamp (57) and tighten the clamps with your hand.
     (d) TORQUE the bolts of the hose clamps (56) and (57) to between 0.41 and 0.38 m.daN (36.28 and 33.63 lbf.in ) T.
   (8) Install the tube (49) as follows:
     (a) Lubricate the threads of the coupling nuts and the ferrules on the tube (49) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Lubricate the threads of the bolt (37) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (c) Put the tube (49) in position on the tube (51) and adjacent to the bracket (36), then connect the coupling nut on the tube (49) to the tube (51) hand-tight.
     (d) Install the bolt (37) to attach the P-clamp (48) and the tube (49) to the bracket (36).
     (e) Put the P-clamp (48) in position to hold the tube (49) with the minimum possible force on the tube (49).
     (f) TORQUE the coupling nut that connects the tube (49) to the tube (51) to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (g) TORQUE the bolt (37) to between 0.76 and 0.64 m.daN (67.26 and 56.64 lbf.in ) T.
   (9) Install the tube (40) as follows:
     (a) Lubricate the threads of the coupling nut and the ferrules on the tube (40) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Lubricate the threads of the bolts (39) and (45) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (c) Put the tube (40) in position on the tube (49) and adjacent to the brackets (38) and (44). Then, connect the coupling nut on the tube (49) to the tube (40) hand-tight.
     (d) Install the bolt (39) to attach the P-clamp (47) and the tube (40) to the bracket (38).
     (e) Install the bolt (45) to attach the P-clamp (46) and the tube (40) to the bracket (44).
     (f) Put the P-clamps (46) and (47) in position to hold the tube (40) with the minimum possible force on the tube.
     (g) TORQUE the coupling nut that connects the tube (49) to the tube (40) to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (h) TORQUE the bolts (39) and (45) to between 0.76 and 0.64 m.daN (67.26 and 56.64 lbf.in ) T.
   (10) Install the tube (28) as follows:
     (a) Lubricate the threads of the coupling nut and the ferrules on the tube (28) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Lubricate the threads of the bolt (41) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (c) Put the tube (28) in position on the tube (40) and adjacent to the bracket (41). Then, connect the coupling nut on the tube (40) to the tube (28) hand-tight.
     (d) Install the bolt (42) to attach the P-clamp (43) and the tube (28) to the bracket (41).
     (e) Put the P-clamp (43) in position to hold the tube (28) with the minimum possible force on the tube (28).
     (f) TORQUE the coupling nut that connects the tube (40) to the tube (28) to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (g) TORQUE the bolt (42) to between 0.38 and 0.32 m.daN (33.63 and 28.32 lbf.in ) T.
   (11) Install the tube (18) as follows:
     (a) Put the tube (18) in position on the tube (28) and adjacent to the brackets (21) and (27). Then connect the coupling nut on the tube (28) to the tube (18) hand-tight.
     (b) Lubricate the threads of the bolts (23), (25) and (26) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (c) Install the bolt (23) to attach the P-clamp (22) and the tube (18) to the bracket (21).
     (d) Install the bolt (25) to attach the P-clamp (24) and the tube (18) to the bracket (21).
     (e) Install the bolt (26) to attach the integral bracket on the tube (18) to the bracket (27).
     (f) Put the P-clamps (22) and (24) in position to hold the tube (18) with the minimum possible force on the tube (18).
     (g) TORQUE the coupling nut that connects the tube (28) to the tube (18) to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (h) TORQUE the bolts (25), (23) to between 0.38 and 0.32 m.daN (33.63 and 28.32 lbf.in ) T.
     (i) TORQUE the bolt (26) to between 0.43 and 0.37 m.daN (38.05 and 32.74 lbf.in ) T.
     (j) Apply the seal with silicon adhesive sealant RTV106 (Material No.CPNCL00963) (MIL-A-46106 GROUP III TYPE I RTV106) around interface between the tube (18) and the bracket (27). Make the seal smooth before it becomes dry.
   (12) Install the aft nacelle anti-ice pressure sensor (sensor) (11) as follows:
     (a) Lubricate the threads of the two bolts (10) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Put the sensor (11) in position adjacent to the bracket (19).
     (c) Install the two bolts (10) that attach the sensor (11) to the bracket (19).
     (d) TORQUE the two bolts (10) to between 1.43 and 1.23 m.daN (126.55 and 108.85 lbf.in ) T.
   (13) Install the tube (12) as follows:
     (a) Lubricate the threads of the coupling nuts and the ferrules on tube the (12) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Lubricate the threads of the bolts (14) and (15) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (c) Put the tube (12) in position on the sensor (11) and the tube (18) and adjacent to the bracket (17). Then, connect the coupling nuts on the tube (12) to the sensor (11) and the tube (18) hand-tight.
     (d) Install the bolt (15) to attach the P-clamp (16) and the tube (12) to the bracket (17).
     (e) Install the bolt (14) to attach the P-clamp (13) to the bracket (19).
     (f) TORQUE the coupling nut that connects the tube (12) to the tube (18) to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (g) TORQUE the coupling nut that connects the tube (12) to the sensor (11)
to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (h) TORQUE the bolts (14) and (15) to between 0.79 and 0.68 m.daN (69.91 and 60.18 lbf.in ) T.
   (14) Connect the electrical connector (20) to the sensor (11) as follows:
     (a) Examination of each connector and the mating receptacle
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTOR AND MATING RECEPTACLE ARE CLEAN BEFORE YOU CONNECT THEM. CONTAMINATION CAN CAUSE A MALFUNCTION OF THE THRUST REVERSER.
       1 Examine each connector and the mating receptacle. Clean the pins and mating sockets if you see signs of contamination ESPM 2055500.
     (b) Engage the connector with the receptacle and align the key with the keyway.
     (c) Push the connector onto the receptacle with side-to-side pressure while you manually tighten the knurled ring.
     (d) Tighten the knurled ring.
CAUTION: USE ONLY SOFT-JAW PLIERS. METAL-JAW PLIERS CAN MAKE THE ELECTRICAL CABLE UNSERVICEABLE.
       1 Tighten the knurled ring with your fingers or with PLIERS - JAWED, SOFT until you can no longer see the blue ring.
     (e) Apply side-to-side pressure to the backshell to make sure that each of the connectors is not loose.
   (15) Install the forward NAI pressure sensor (sensor) (7) as follows:
     (a) Lubricate the threads of the two bolts (6) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Put the sensor (7) in position adjacent to the bracket (9).
     (c) Install the two bolts (6) that attach the sensor (7) to the bracket (9).
     (d) TORQUE the two bolts (6) to between 1.43 and 1.23 m.daN (126.55 and 108.85 lbf.in ) T.
   (16) Install the tube (4) as follows:
     (a) Lubricate the threads of the coupling nuts and the ferrules on the tube (4) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (b) Lubricate the threads of the bolt (3) with LUBRICATING OIL TURBINE ENGINE SYNT BASE (Material No.CPNCL00062) .
     (c) Put the tube (4) in position on the sensor (7) and the NAI duct (2) and adjacent to the bracket (1). Then, connect the coupling nuts on the tube (4) to the sensor (7) and the NAI duct (2) hand-tight.
     (d) Install the bolt (3) to attach the P-clamp (5) and the tube (4) to the bracket (1).
     (e) Put the P-clamp (5) in position to hold the tube (4) with the minimum possible force on the tube (4).
     (f) TORQUE the coupling nut that connects the tube (4) to the NAI duct (2)
to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (g) TORQUE the coupling nut that connects the tube (4) to the sensor (7) to between 3.48 and 2.96 m.daN (25.66 and 21.83 lbf.ft ) T.
     (h) TORQUE the bolt (3) to between 0.79 and 0.68 m.daN (69.91 and 60.18 lbf.in ) T.
   (17) Connect the electrical connector (8) to the sensor (7) as follows:
     (a) Examination of each connector
CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTOR AND MATING RECEPTACLE ARE CLEAN BEFORE YOU CONNECT THEM. CONTAMINATION CAN CAUSE A MALFUNCTION OF THE THRUST REVERSER.
       1 Examine each connector and the mating receptacle. Clean the pins and mating sockets if you see signs of contamination ESPM 2055500.
     (b) Engage the connector with the receptacle and align the key with the keyway.
     (c) Push the connector onto the receptacle with side-to-side pressure while you manually tighten the knurled ring.
     (d) Tighten the knurled ring.
CAUTION: USE ONLY SOFT-JAW PLIERS. METAL-JAW PLIERS CAN MAKE THE ELECTRICAL CABLE UNSERVICEABLE.
       1 Tighten the knurled ring with your fingers or with PLIERS - JAWED, SOFT until you can no longer see the blue ring.
     (e) Apply side-to-side pressure to the backshell to make sure that each of the connectors is not loose.
5. Close-up
Subtask 30-21-11-865-052-A
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
FOR FIN: 4020KM1 (POWER PLANTDEMOUNTABLE, ENGINE 1)
122VUANTI ICE/ENG/11DN1X10
FOR FIN: 4020KM2 (POWER PLANTDEMOUNTABLE, ENGINE 2)
122VUANTI ICE/ENG/21DN2W10
Subtask 30-21-11-410-050-A
B. 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 78-36-00-410-806)
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
451AL 452AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
461AL 462AR
Subtask 30-21-11-440-050-A
C. Do the reactivation of the Thrust Reverser after maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 30-21-11-410-051-A
D. Close Access
   (1) 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
   (2) Remove the access platform(s).
   (3) Remove the WARNING NOTICE(S).
Subtask 30-21-11-710-050-A
E. Test
   (1) Do the FADEC test (Menu Mode) (Ref. AMM TASK 73-29-00-710-802).
[Rev.10 from 2021] 2026.04.01 00:29:06 UTC
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