W DOC AIRBUS | AMM A320F

Replacement of the PTFE Strips on Thrust Reverser (T/R) Left Hand Side and Right Hand Side [CFML]

TASK 78-32-49-960-801-A
Replacement of the PTFE Strips on Thrust Reverser (T/R) Left Hand Side and Right Hand Side

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.
ZONE: 400
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 2M (6 FT) - ADJUSTABLE
No specific
1
BRUSH - BRISTLED, FIBER, SOFT
No specific
2
COVER - PROTECTION
No specific
AR
WARNING NOTICE(S)
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CPNCL00963)
silicon adhesive sealant
(Material No.CPNCL01066)
silicone primer (SS4044)
(Material No.CPNCL02069)
textile - lint free cotton
(Material No.CPNCL02322)
abrasive paper
(Material No.CPNCL02589)
diestone DLS
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
1
PTFE 12 O`CLOCK STRIP
AIPC 78-30-24-11-100
10
PTFE STRIPS
AIPC 78-30-24-11-100
9
PTFE 12 O`CLOCK STRIP
AIPC 78-30-24-11-100
2
PTFE 3 O`CLOCK STRIP
AIPC 78-30-24-11-110
3
PTFE 6 O`CLOCK STRIP
AIPC 78-30-24-11-120
11
PTFE STRIPS
AIPC 78-30-25-11-010
5
PTFE STRIP
AIPC 78-30-25-11-010
6
PTFE STRIP
AIPC 78-30-25-11-010
7
PTFE STRIP
AIPC 78-30-25-11-010
 E. 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 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)
F Identification of the PTFE Strips on the Left Side
F Correct Installation of the PTFE Strips on the Left Side (PRE SPOL BD-TR-17024)
F Correct Installation of the PTFE Strips on the Left Side (POST SPOL BD-TR-17024)/(PRE SPOL BD-TR-19015)
F Correct Installation of the PTFE Strips on the FWD Frame Edges
F Correct Installation of the PTFE Strips on the Left Side (POST SPOL BD-TR-19015)
F Identification of the PTFE Strips on the Right Side
F Correct Installation of the PTFE Strips on the Right Side (PRE SPOL BD-TR-19015)
F Correct Installation of the PTFE Strips on the Right Side (POST SPOL BD-TR-19015)
3. Job Set-up
Subtask 78-32-49-941-061-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 the WARNING NOTICE(S) in position to tell persons not to operate:
  • The ENG/MODE selector switch
  • 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) Put the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 78-32-49-010-071-A
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.
   (2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 78-32-49-040-061-A
C. 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) Do the deactivation of the thrust reverser system for nacelle maintenance (Ref. AMM TASK 78-30-00-040-807).
4. Procedure
CAUTION: BE CAREFUL NOT TO CAUSE DAMAGE TO THE ADJACENT STRUCTURES WHEN YOU DO THESE OPERATIONS.
Subtask 78-32-49-960-050-A
A. Replacement of the PTFE Strips on the Left Side
F Identification of the PTFE Strips on the Left Side
F Correct Installation of the PTFE Strips on the Left Side (PRE SPOL BD-TR-17024)
F Correct Installation of the PTFE Strips on the Left Side (POST SPOL BD-TR-17024)/(PRE SPOL BD-TR-19015)
F Correct Installation of the PTFE Strips on the FWD Frame Edges
F Correct Installation of the PTFE Strips on the Left Side (POST SPOL BD-TR-19015)

PRE SPOL BD-TR-17024

NOTE: There are three PTFE strips on left T/R. The procedure that follows is for the 78302411-100PTFE 12 O`CLOCK STRIP1. It is also applicable to the 78302411-110PTFE 3 O`CLOCK STRIP2 and the 78302411-120PTFE 6 O`CLOCK STRIP3.

END OF PRE SPOL BD-TR-17024


POST SPOL BD-TR-17024


PRE SPOL BD-TR-19015

NOTE: There are four PTFE strips on left T/R. The procedure that follows is for the three 78302411-100PTFE 12 O`CLOCK STRIP9. It is also applicable to the 78302411-120PTFE 6 O`CLOCK STRIP3.

END OF POST SPOL BD-TR-17024


END OF PRE SPOL BD-TR-19015


POST SPOL BD-TR-19015

NOTE: There are three PTFE strips on left T/R. The procedure that follows is for the three AIPC 78-30-24-11-100 PTFE STRIPS (10).

END OF POST SPOL BD-TR-19015

   (1) Install a temporary COVER - PROTECTION around the work area.

PRE SPOL BD-TR-17024

   (2) Removal of the PTFE 12 o'clock strip (1):
     (a) Mark and record the position of the PTFE 12 o'clock strip (1) on the forward frame (4).
     (b) Remove the PTFE 12 o'clock strip (1).
     (c) Clean the work area with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (d) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF PRE SPOL BD-TR-17024


POST SPOL BD-TR-17024


PRE SPOL BD-TR-19015

   (3) Removal of the PTFE 12 o'clock strips (9):
     (a) Mark and record the position of the PTFE 12 o'clock strips (9) on the forward frame (4).
     (b) Remove the PTFE 12 o'clock strips (9).
     (c) Clean the work area with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (d) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF POST SPOL BD-TR-17024


END OF PRE SPOL BD-TR-19015


POST SPOL BD-TR-19015

   (4) Removal of the PTFE strips (10):
     (a) Mark and record the position of the PTFE strips (10) on the forward frame (4).
     (b) Remove the PTFE strips (10).
     (c) Clean the work area with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (d) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF POST SPOL BD-TR-19015


PRE SPOL BD-TR-17024

   (5) Installation of the PTFE 12 o'clock strip (1):
CAUTION: MAKE SURE THAT THE NEW PTFE STRIP IS SUPPLIED IN A CLOSED BLACK PACKAGE. IF NOT, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT CORRECTLY BOND TO THE FORWARD FRAME.
CAUTION: DO NOT LET THE NEW PTFE STRIP EXPOSED AT LIGHT MORE THAN TWO HOURS BEFORE INSTALLATION. IF YOU DO, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT BOND TO THE FORWARD FRAME CORRECTLY.
     (a) Lightly smooth the forward frame (4) at PTFE 12 o'clock strip (1) location with abrasive paper (Material No.CPNCL02322) .
     (b) Clean the forward frame and the PTFE 12 o'clock strip (1) contact surface with textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (c) Apply the CPNCL01066silicone primer (SS4044) on the forward frame (4) at the PTFE 12 o'clock strip (1) location.
       1 Let the CPNCL01066silicone primer (SS4044) cure as per manufacturer's instruction.
     (d) Apply a thin layer of silicon adhesive sealant (Material No.CPNCL00963) on the contact surface of the new 78302411-100PTFE 12 O`CLOCK STRIP1 using BRUSH - BRISTLED, FIBER, SOFT.
NOTE: The PTFE strip where the silicon adhesive sealant (Material No.CPNCL00963) has to be applied is protected by a sheet of "paper". Remove the sheet of "paper" before you apply the silicon adhesive sealant (Material No.CPNCL00963) .
     (e) Put the strip in position:
CAUTION: MAKE SURE THAT:
  • YOU PUT THE PTFE STRIP IN POSITION BEHIND THE FORWARD FRAME EDGES
  • THERE IS A MINIMUM CLEARANCE BETWEEN THE TWO PTFE STRIPS.
IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE PTFE STRIP WILL QUICKLY DISBOND.
       1 Make sure that the clearance between the two PTFE strips and between PTFE strip and structure is between 1.00 mm (0.039 in.) and 3.00 mm (0.118 in.).
       2 Put the new PTFE 12 o'clock strip (1) in position.
F Correct Installation of the PTFE Strips on the Left Side (PRE SPOL BD-TR-17024)
     (f) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (g) Let the silicon adhesive sealant (Material No.CPNCL00963) cure.
NOTE: Apply pressure on the PTFE strip in its position during the whole curing time of the adhesive with standard tightening strip and tightening clamp.
     (h) Apply a bead of silicon adhesive sealant (Material No.CPNCL00963) to fill the gap between the two PTFE strips.
     (i) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) .
     (j) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF PRE SPOL BD-TR-17024


POST SPOL BD-TR-17024


PRE SPOL BD-TR-19015

   (6) Installation of the PTFE 12 o'clock strips (9):
CAUTION: MAKE SURE THAT THE NEW PTFE STRIP IS SUPPLIED IN A CLOSED BLACK PACKAGE. IF NOT, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT CORRECTLY BOND TO THE FORWARD FRAME.
CAUTION: DO NOT LET THE NEW PTFE STRIP EXPOSED AT LIGHT MORE THAN TWO HOURS BEFORE INSTALLATION. IF YOU DO, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT BOND TO THE FORWARD FRAME CORRECTLY.
     (a) Lightly smooth the forward frame (4) at PTFE 12 o'clock strip (9) location with abrasive paper (Material No.CPNCL02322) .
     (b) Clean the forward frame and the PTFE 12 o'clock strip (9) contact surface with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (c) Apply the CPNCL01066silicone primer (SS4044) on the forward frame (4) at the 12 o'clock PTFE strip (9) location.
     (d) Apply a thin layer of silicon adhesive sealant (Material No.CPNCL00963) on the contact surface of the new 78302411-100PTFE 12 O`CLOCK STRIP9 using BRUSH - BRISTLED, FIBER, SOFT.
NOTE: The PTFE strips where the silicon adhesive sealant (Material No.CPNCL00963) has to be applied is protected by a sheet of "paper". Remove the sheet of "paper" before you apply the silicon adhesive sealant (Material No.CPNCL00963) .
     (e) Put the strip in position:
CAUTION: MAKE SURE THAT:
  • YOU PUT THE PTFE STRIP IN POSITION BEHIND THE FORWARD FRAME EDGES
  • THERE IS A MINIMUM CLEARANCE BETWEEN THE TWO PTFE STRIPS.
IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE PTFE STRIP WILL QUICKLY DISBOND.
       1 Make sure that the clearance between the two PTFE strips and between PTFE strip and structure is between 1.00 mm (0.039 in.) and 3.00 mm (0.118 in.).
       2 Put the new PTFE 12 o'clock strips (9) in position.
F Correct Installation of the PTFE Strips on the Left Side (POST SPOL BD-TR-17024)/(PRE SPOL BD-TR-19015)
     (f) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (g) Let the silicon adhesive sealant (Material No.CPNCL00963) cure.
NOTE: Apply pressure on the PTFE strips in its position during the whole curing time of the adhesive with standard tightening strip and tightening clamp.
     (h) Apply a bead of silicon adhesive sealant (Material No.CPNCL00963) to fill the gap between the two PTFE strips.
     (i) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) .
     (j) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF POST SPOL BD-TR-17024


END OF PRE SPOL BD-TR-19015


POST SPOL BD-TR-19015

   (7) Installation of the PTFE strips (10):
CAUTION: MAKE SURE THAT THE NEW PTFE STRIP IS SUPPLIED IN A CLOSED BLACK PACKAGE. IF NOT, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT CORRECTLY BOND TO THE FORWARD FRAME.
CAUTION: DO NOT LET THE NEW PTFE STRIP EXPOSED AT LIGHT MORE THAN TWO HOURS BEFORE INSTALLATION. IF YOU DO, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT BOND TO THE FORWARD FRAME CORRECTLY.
     (a) Lightly smooth the forward frame (4) at PTFE strips (10) location with abrasive paper (Material No.CPNCL02322) .
     (b) Clean the forward frame and the PTFE strips (10) contact surface with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (c) Apply the CPNCL01066silicone primer (SS4044) on the forward frame (4) at the PTFE strips (10) location.
     (d) Apply a thin layer of silicon adhesive sealant (Material No.CPNCL00963) on the contact surface of the new AIPC 78-30-24-11-100 PTFE STRIPS (10) using the BRUSH - BRISTLED, FIBER, SOFT.
NOTE: The PTFE strips where the silicon adhesive sealant (Material No.CPNCL00963) has to be applied is protected by a sheet of "paper". Remove the sheet of "paper" before you apply the silicon adhesive sealant (Material No.CPNCL00963) .
     (e) Put the strip in position:
CAUTION: MAKE SURE THAT:
  • YOU PUT THE PTFE STRIP IN POSITION BEHIND THE FORWARD FRAME EDGES
  • THERE IS A MINIMUM CLEARANCE BETWEEN THE TWO PTFE STRIPS.
IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE PTFE STRIP WILL QUICKLY DISBOND.
       1 Put the new PTFE strips (10) in position.
F Correct Installation of the PTFE Strips on the Left Side (POST SPOL BD-TR-19015)
       2 If necessary, cut the unwanted length of the PTFE strips (10).
NOTE: You can use the removed PTFE strips (10) as a template.
       3 Make sure that the clearance between the PTFE strips is between 1.00 mm (0.039 in.) and 3.00 mm (0.118 in.) and between PTFE strips and structure is between 0.00 mm (0.000 in.) and 2.50 mm (0.098 in.).
     (f) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (g) Let the silicon adhesive sealant (Material No.CPNCL00963) cure.
NOTE: Apply pressure on the PTFE strips in its position during the whole curing time of the adhesive with standard tightening strip and tightening clamp.
     (h) Apply a bead of silicon adhesive sealant (Material No.CPNCL00963) to fill the gap between the PTFE strips.
     (i) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) .
     (j) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF POST SPOL BD-TR-19015

Subtask 78-32-49-960-051-A
B. Replacement of the PTFE Strips on the Right Side
F Identification of the PTFE Strips on the Right Side
F Correct Installation of the PTFE Strips on the Right Side (PRE SPOL BD-TR-19015)
F Correct Installation of the PTFE Strips on the FWD Frame Edges

PRE SPOL BD-TR-19015

NOTE: There are three PTFE strips on right T/R. The procedure that follows is for the AIPC 78-30-25-11-010 PTFE STRIP (5). It is also applicable to the AIPC 78-30-25-11-010 PTFE STRIP (6) and the AIPC 78-30-25-11-010 PTFE STRIP (7).

END OF PRE SPOL BD-TR-19015


POST SPOL BD-TR-19015

NOTE: There are three PTFE strips on right T/R. The procedure that follows is for the three AIPC 78-30-25-11-010 PTFE STRIPS (11).

END OF POST SPOL BD-TR-19015

   (1) Install a temporary COVER - PROTECTION around the work area.

PRE SPOL BD-TR-19015

   (2) Removal of the PTFE strip (5):
     (a) Mark and record the position of the PTFE strip (5) on the forward frame (8).
     (b) Remove the PTFE strip (5).
     (c) Clean the work area with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (d) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF PRE SPOL BD-TR-19015


POST SPOL BD-TR-19015

   (3) Removal of the PTFE strips (11):
     (a) Mark and record the position of the PTFE strips (11) on the forward frame (8).
     (b) Remove the PTFE strips (11).
     (c) Clean the work area with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (d) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF POST SPOL BD-TR-19015


PRE SPOL BD-TR-19015

   (4) Installation of the PTFE strip (5):
CAUTION: MAKE SURE THAT THE NEW PTFE STRIP IS SUPPLIED IN A CLOSED BLACK PACKAGE. IF NOT, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT CORRECTLY BOND TO THE FORWARD FRAME.
CAUTION: DO NOT LET THE NEW PTFE STRIP EXPOSED AT LIGHT MORE THAN TWO HOURS BEFORE INSTALLATION. IF YOU DO, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT BOND TO THE FORWARD FRAME CORRECTLY.
     (a) Lightly smooth the forward frame (8) at PTFE strip (5) location with abrasive paper (Material No.CPNCL02322) .
     (b) Clean the forward frame and the PTFE strip (5) contact surface with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (c) Apply the CPNCL01066silicone primer (SS4044) on the forward frame (8) at the PTFE strip (5) location.
       1 Let the CPNCL01066silicone primer (SS4044) cure as per manufacturer's instruction.
     (d) Apply a thin layer of silicon adhesive sealant (Material No.CPNCL00963) on the contact surface of the new AIPC 78-30-25-11-010 PTFE STRIP (5) using the BRUSH - BRISTLED, FIBER, SOFT.
NOTE: The PTFE strip where the silicon adhesive sealant (Material No.CPNCL00963) has to be applied is protected by a sheet of "paper". Remove the sheet of "paper" before you apply the silicon adhesive sealant (Material No.CPNCL00963) .
     (e) Put the strip in position:
CAUTION: MAKE SURE THAT:
  • YOU PUT THE PTFE STRIP IN POSITION BEHIND THE FORWARD FRAME EDGES
  • THERE IS A MINIMUM CLEARANCE BETWEEN THE TWO PTFE STRIPS.
IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE PTFE STRIP WILL QUICKLY DISBOND.
       1 Make sure that the clearance between the two PTFE strips and between PTFE strip and structure is between 1.00 mm (0.039 in.) and 3.00 mm (0.118 in.).
       2 Put the new PTFE strip (5) in position.
F Correct Installation of the PTFE Strips on the Right Side (PRE SPOL BD-TR-19015)
     (f) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (g) Let the silicon adhesive sealant (Material No.CPNCL00963) cure.
NOTE: Apply pressure on the PTFE strip in its position during the whole curing time of the adhesive with standard tightening strip and tightening clamp.
     (h) Apply a bead of silicon adhesive sealant (Material No.CPNCL00963) to fill the gap between the two PTFE strips.
     (i) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) .
     (j) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF PRE SPOL BD-TR-19015


POST SPOL BD-TR-19015

   (5) Installation of the PTFE strips (11):
CAUTION: MAKE SURE THAT THE NEW PTFE STRIP IS SUPPLIED IN A CLOSED BLACK PACKAGE. IF NOT, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT CORRECTLY BOND TO THE FORWARD FRAME.
CAUTION: DO NOT LET THE NEW PTFE STRIP EXPOSED AT LIGHT MORE THAN TWO HOURS BEFORE INSTALLATION. IF YOU DO, THE SURFACE MATERIAL ON THE PTFE STRIP CAN BE DAMAGED AND THE PTFE STRIP WILL NOT BOND TO THE FORWARD FRAME CORRECTLY.
     (a) Lightly smooth the forward frame (8) at PTFE strips (11) location with abrasive paper (Material No.CPNCL02322) .
     (b) Clean the forward frame and the PTFE strips (11) contact surface with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (c) Apply the CPNCL01066silicone primer (SS4044) on the forward frame (8) at the PTFE strips (11) location.
     (d) Apply a thin layer of silicon adhesive sealant (Material No.CPNCL00963) on the contact surface of the new AIPC 78-30-25-11-010 PTFE STRIP (11) using the BRUSH - BRISTLED, FIBER, SOFT.
NOTE: The PTFE strips where the silicon adhesive sealant (Material No.CPNCL00963) has to be applied is protected by a sheet of "paper". Remove the sheet of "paper" before you apply the silicon adhesive sealant (Material No.CPNCL00963) .
     (e) Put the strip in position:
CAUTION: MAKE SURE THAT:
  • YOU PUT THE PTFE STRIP IN POSITION BEHIND THE FORWARD FRAME EDGES
  • THERE IS A MINIMUM CLEARANCE BETWEEN THE TWO PTFE STRIPS.
IF YOU DO NOT OBEY THESE INSTRUCTIONS, THE PTFE STRIP WILL QUICKLY DISBOND.
       1 Put the new PTFE strips (11) in position.
F Correct Installation of the PTFE Strips on the Right Side (POST SPOL BD-TR-19015)
       2 If necessary, cut the unwanted length of the PTFE strips (11).
NOTE: You can use the removed PTFE strips (11) as a template.
       3 Make sure that the clearance between the PTFE strips is between 1.00 mm (0.039 in.) and 3.00 mm (0.118 in.) and between PTFE strip and structure is between 0.00 mm (0.000 in.) and 2.50 mm (0.098 in.).
     (f) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) made moist with diestone DLS (Material No.CPNCL02589) .
     (g) Let the silicon adhesive sealant (Material No.CPNCL00963) cure.
NOTE: Apply pressure on the PTFE strips in its position during the whole curing time of the adhesive with standard tightening strip and tightening clamp.
     (h) Apply a bead of silicon adhesive sealant (Material No.CPNCL00963) to fill the gap between the PTFE strips.
     (i) Clean the unwanted silicon adhesive sealant (Material No.CPNCL00963) with a textile - lint free cotton (Material No.CPNCL02069) .
     (j) Dry the work area with a textile - lint free cotton (Material No.CPNCL02069) before the solvent becomes gas.

END OF POST SPOL BD-TR-19015

5. Close-up
Subtask 78-32-49-440-062-A
A. Do the reactivation of the thrust reverser system after nacelle maintenance (Ref. AMM TASK 78-30-00-440-807).
Subtask 78-32-49-410-072-A
B. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) 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.
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 03:36:23 UTC
"Aviabrain" 2025