Removal of the Overheat Sensing Elements

TASK 36-22-16-000-004-A
Removal of the Overheat Sensing Elements

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.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

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: 26HF
FIN: 42HF
FIN: 53HF
FIN: 69HF

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	ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)
98D27803000000	1	LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
500	LEFT WING
600	RIGHT WING
FOR [26HF] (SNSG ELEM-OVHT, L WING LOOP A)
FOR [53HF] (SNSG ELEM-OVHT, L WING LOOP B)
522AT, 522CB, 522EB, 522FB
522YB
522AB
FOR [42HF] (SNSG ELEM-OVHT, R WING LOOP A)
FOR [69HF] (SNSG ELEM-OVHT, R WING LOOP B)
622AT, 622CB, 622EB, 622FB
622AB
622YB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 27-80-00-866-004-A	Extending the Slats on the Ground
TASK 57-41-37-000-003-A	Removal of the Access Panel
TASK 57-41-37-000-004-A	Removal of the Pressure Relief Panels
TASK 57-41-37-000-006-A	Removal of the Access Panels
Overheat Sensing Elements and Cables - Access Panels ** ON A/C NOT FOR ALL
Overheat Sensing Elements
Overheat Sensing Elements
Overheat Sensing Elements
Overheat Sensing Elements - Typical Assemblies
Overheat Sensing Elements and Cables - Access Panels ** ON A/C NOT FOR ALL
FOR [26HF] (SNSG ELEM-OVHT, L WING LOOP A)
FOR [53HF] (SNSG ELEM-OVHT, L WING LOOP B)
TASK 57-41-37-000-003-A	Removal of the Access Panel
TASK 57-41-37-000-004-A	Removal of the Pressure Relief Panels
TASK 57-41-37-000-006-A	Removal of the Access Panels
TASK 57-41-37-000-012-A	Removal of the Access Panel
FOR [42HF] (SNSG ELEM-OVHT, R WING LOOP A)
FOR [69HF] (SNSG ELEM-OVHT, R WING LOOP B)
TASK 57-41-37-000-003-A	Removal of the Access Panel
TASK 57-41-37-000-004-A	Removal of the Pressure Relief Panels
TASK 57-41-37-000-006-A	Removal of the Access Panels
TASK 57-41-37-000-012-A	Removal of the Access Panel

3. Job Set-up
Subtask 36-22-16-941-053-A

A. Safety Precautions
(1) Put the SAFETY BARRIER(S) in position.
(2) Put a WARNING NOTICE(S) in position in the cockpit to tell persons not to operate the slat controls.

Subtask 36-22-16-860-060-A

B. Aircraft Maintenance Configuration
(1) Extend the slats fully (Ref. AMM TASK 27-80-00-866-004).
(2) Install the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION on the flap/slat control lever on panel 114VU.

Subtask 36-22-16-865-053-A

C. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 1/CTL	3HA1	D12
49VU	AIR BLEED/ENG 1/MONG	2HA1	D11
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B06
** ON A/C NOT FOR ALL
49VU	AIR BLEED/ENG 2/MONG	3HA2	D12
49VU	AIR BLEED/ENG 1/CTL	2HA1	D11
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1	5CV	B01
** ON A/C ALL
121VU	FLIGHT CONTROLS/SLT/CTL/SYS2	7CV	R21
** ON A/C NOT FOR ALL
122VU	AIR BLEED/ENG 2/CTL	3HA2	Z23
122VU	AIR BLEED/ENG 2/MONG	2HA2	Z22
** ON A/C NOT FOR ALL
122VU	AIR BLEED/ENG 1/MONG	3HA1	Z23
122VU	AIR BLEED/ENG 2/CTL	2HA2	Z22

Subtask 36-22-16-010-053-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Put the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE in position in the zone 522(622).
(2) Remove the applicable access panels (Ref. AMM TASK 57-41-37-000-003), (Ref. AMM TASK 57-41-37-000-004), (Ref. AMM TASK 57-41-37-000-006):
(a) FOR [26HF] (SNSG ELEM-OVHT, L WING LOOP A), [53HF] (SNSG ELEM-OVHT, L WING LOOP B)
remove 522AT 522AB 522CB 522EB 522FB
(b) FOR [42HF] (SNSG ELEM-OVHT, R WING LOOP A), [69HF] (SNSG ELEM-OVHT, R WING LOOP B)
remove 622AT 622AB 622CB 622EB 622FB.

Subtask 36-22-16-010-053-B ** ON A/C NOT FOR ALL

D. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the applicable access panels.
(2) Remove the applicable access panels:
(a) FOR [26HF] (SNSG ELEM-OVHT, L WING LOOP A), [53HF] (SNSG ELEM-OVHT, L WING LOOP B)

(b) FOR [42HF] (SNSG ELEM-OVHT, R WING LOOP A), [69HF] (SNSG ELEM-OVHT, R WING LOOP B)

4. Procedure
Subtask 36-22-16-020-053-A

A. Removal of the Overheat Sensing Elements 26HF(42HF) and 53HF(69HF)

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.

(1) Release the quick-release fasteners (27) and open the clamps (25). Retain the protective sleeves (26).
(2) At the pylon outboard closing-rib:
(a) Remove and discard the lockwire from the connectors (19) and (22) and the nuts (20).
(b) Disconnect the connector (19) from the connector (22).
(c) Remove the nut (20) from the connector (22) and remove the connector (22) from the flanged attachment (21).
(3) At the outboard telescope-rib:
(a) Remove and discard the lockwire from the connectors (19), (22) and (24) and the nut (20).
(b) Disconnect the connectors (19) and (24) from the connectors (22) and (23).
(c) Remove the nut (20) from the connectors (22) and (23).
(d) Remove the connectors (22) and (23) from the flanged attachment (21).
(4) Put blanking caps on the disconnected connectors (19), (22), (23) and (24).
(5) Remove the applicable overheat sensing element (14) or (17), and retain the applicable grommets (37).

[Rev.10 from 2021] 2026.04.01 01:17:09 UTC