W DOC AIRBUS | AMM A320F

Installation of the Overheat Sensing Elements

TASK 36-22-16-400-007-A
Installation of the Overheat Sensing Elements

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.
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.
ZONE: 500
ZONE: 600
FIN: 22HF
FIN: 28HF
FIN: 38HF
FIN: 44HF
FIN: 49HF
FIN: 55HF
FIN: 65HF
FIN: 71HF
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
AR
SAFETY BARRIER(S)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 0.68 and 0.56 m.daN (60.18 and 49.56 lbf.in ) T
98D27803000000
1
LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14QFB1)
Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
500
LEFT WING
600
RIGHT WING
FOR [22HF] (SNSG ELEM-OVHT, L WING LOOP A)
FOR [28HF] (SNSG ELEM-OVHT, L WING LOOP A)
FOR [49HF] (SNSG ELEM-OVHT, L WING LOOP B)
FOR [55HF] (SNSG ELEM-OVHT, L WING LOOP B)
521AB, 521BB, 521BT, 521CB, 521EB, 521GB
FOR [38HF] (SNSG ELEM-OVHT, R WING LOOP A)
FOR [44HF] (SNSG ELEM-OVHT, R WING LOOP A)
FOR [65HF] (SNSG ELEM-OVHT, R WING LOOP B)
FOR [71HF] (SNSG ELEM-OVHT, R WING LOOP B)
621AB, 621BB, 621BT, 621CB, 621EB, 621GB
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 27-80-00-866-004-A
Extending the Slats on the Ground
TASK 27-80-00-866-005-A
Retracting the Slats on the Ground
TASK 36-22-00-710-001-A
Operational Test of the Overheat Detection System
TASK 36-22-00-710-802-A
Operational Test of the Overheat Detection System
TASK 57-41-37-000-004-A
Removal of the Pressure Relief Panels
TASK 57-41-37-000-005-A
Removal of the NACA Duct Panel
TASK 57-41-37-400-002-A
Installation of the Pressure Relief Panels
TASK 57-41-37-400-005-A
Installation of the NACA Duct Panel
F Overheat Sensing Elements and Cables - Access Panels ** ON A/C NOT FOR ALL
F Overheat Sensing Elements
F Overheat Sensing Elements
F Overheat Sensing Elements
F Overheat Sensing Elements - Typical Assemblies
F Overheat Sensing Elements and Cables - Access Panels ** ON A/C NOT FOR ALL
F Permitted Tolerances of the Sensing Elements
F Sensing Elements - Typical Installation
3. Job Set-up
Subtask 36-22-16-941-063-A
A. Safety Precautions
   (1) Make sure that the SAFETY BARRIER(S) are in position.
   (2) Make sure that the WARNING NOTICE(S) is in position in the cockpit to tell persons not to operate the slat controls.
Subtask 36-22-16-860-075-A
B. Aircraft Maintenance Configuration
   (1) Make sure that the slats are fully extended (Ref. AMM TASK 27-80-00-866-004).
   (2) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the flap/slat control lever on panel 114VU.
   (3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position below the applicable access panels.
   (4) Make sure that the applicable access panels are removed (Ref. AMM TASK 57-41-37-000-004), (Ref. AMM TASK 57-41-37-000-005):

     (a) FOR [28HF] (SNSG ELEM-OVHT, L WING LOOP A), [49HF] (SNSG ELEM-OVHT, L WING LOOP B), [22HF] (SNSG ELEM-OVHT, L WING LOOP A), [55HF] (SNSG ELEM-OVHT, L WING LOOP B)
panels 521AB 521BB 521CB 521EB 521GB 521BT
     (b) FOR [44HF] (SNSG ELEM-OVHT, R WING LOOP A), [65HF] (SNSG ELEM-OVHT, R WING LOOP B), [38HF] (SNSG ELEM-OVHT, R WING LOOP A), [71HF] (SNSG ELEM-OVHT, R WING LOOP B)
panels 621AB 621BB 621CB 621EB 621GB 621BT.
Subtask 36-22-16-865-071-A
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 1/CTL3HA1D12
49VUAIR BLEED/ENG 1/MONG2HA1D11
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 2/MONG3HA2D12
49VUAIR BLEED/ENG 1/CTL2HA1D11
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 2/CTL3HA2Z23
122VUAIR BLEED/ENG 2/MONG2HA2Z22
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/ENG 2/CTL2HA2Z22
4. Procedure
Subtask 36-22-16-420-063-A
A. Preparation for Installation
   (1) Clean the component interface and/or the adjacent area with a Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
   (2) Do an inspection of the component interfaces and the adjacent area.
   (3) Make sure that the parts retained from the removed component are clean and in the correct condition.
   (4) Examine the applicable overheat sensing element (5), (6), (7) and (8) for the correct condition. The element tube must not be twisted and the surface must be free of damage other than the limits that follow:
     (a) The maximum permitted depth of abrasions or dents is 0.05 mm (0.0020 in.).
     (b) The minimum permitted tube diameter at a dent is 1.78 mm (0.0701 in.).
   (5) Remove the blanking caps from the overheat sensing element connectors and examine the connectors for the correct condition. Put the blanking caps on the connectors again.
Subtask 36-22-16-420-055-A
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.
CAUTION: REMOVE OR INSTALL THE SENSING ELEMENTS CAREFULLY. DO NOT TWIST, BEND OR CAUSE KINKS IN THE SENSING ELEMENTS. IF YOU DO, YOU CAN CAUSE DAMAGE TO THEM.
B. Installation of the Overheat Sensing Elements
NOTE: Obey the permitted tolerances for the installation of the sensing elements:
F Permitted Tolerances of the Sensing Elements
F Sensing Elements - Typical Installation
   (1) Carefully install the overheat sensing element (5), (6), (7) or (8) and install the applicable grommets (36).
   (2) Remove the blanking caps from the connectors (19) and (22).
   (3) Install the connector (22) in the flanged attachment (21).
   (4) Install the nut (20) on the connector (22).
   (5) TORQUE the nut (20) to between 0.68 and 0.56 m.daN (60.18 and 49.56 lbf.in ) T.
   (6) Install the connector (19) on the connector (22).
   (7) TORQUE the connector (19) to between 0.68 and 0.56 m.daN (60.18 and 49.56 lbf.in ) T.
   (8) Safety the connectors (19) and (22) and the nut (20) with 14QFB1Wire-Locking Dia: 0.8 mm CRES Nickel Alloy -.
   (9) Install a protective sleeve (26) on the overheat sensing element (5), (6), (7) or (8) at each clamp (25). Close the clamps (25) and lock the quick-release fasteners (27).
   (10) Install a protective sleeve (26) on the overheat sensing element (5) or (6) at the fairlead (34). Install the removable part of the fairlead (34) with the bolt (33) and the nut (35).
Subtask 36-22-16-865-072-A
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 1/CTL3HA1D12
49VUAIR BLEED/ENG 1/MONG2HA1D11
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 2/MONG3HA2D12
49VUAIR BLEED/ENG 1/CTL2HA1D11
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 2/CTL3HA2Z23
122VUAIR BLEED/ENG 2/MONG2HA2Z22
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/ENG 2/CTL2HA2Z22
Subtask 36-22-16-710-055-A ** ON A/C NOT FOR ALL
D. Test
   (1) Do an operational test of the overheat detection system (Ref. AMM TASK 36-22-00-710-001).
Subtask 36-22-16-710-055-B ** ON A/C NOT FOR ALL
D. Operational Test
   (1) Do an operational test of the overheat detection system (Ref. AMM TASK 36-22-00-710-802).
5. Close-up
Subtask 36-22-16-410-055-A
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the applicable access panels (Ref. AMM TASK 57-41-37-400-002), (Ref. AMM TASK 57-41-37-400-005):

     (a) FOR [28HF] (SNSG ELEM-OVHT, L WING LOOP A), [49HF] (SNSG ELEM-OVHT, L WING LOOP B), [22HF] (SNSG ELEM-OVHT, L WING LOOP A), [55HF] (SNSG ELEM-OVHT, L WING LOOP B)
install 521AB 521BB 521CB 521EB 521GB 521BT
     (b) FOR [44HF] (SNSG ELEM-OVHT, R WING LOOP A), [65HF] (SNSG ELEM-OVHT, R WING LOOP B), [38HF] (SNSG ELEM-OVHT, R WING LOOP A), [71HF] (SNSG ELEM-OVHT, R WING LOOP B)
install 621AB 621BB 621CB 621EB 621GB 621BT.
Subtask 36-22-16-865-073-A
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
Subtask 36-22-16-860-074-A
C. Aircraft Configuration
   (1) Retract the slats fully (Ref. AMM TASK 27-80-00-866-005).
Subtask 36-22-16-942-055-A
D. Removal of Equipment
   (1) Remove the safety barriers.
   (2) Remove the WARNING NOTICE(S).
   (3) Remove the access platform(s).
   (4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 01:17:15 UTC
"Aviabrain" 2025