Removal of the Overheat Sensing Elements

TASK 36-22-16-000-005-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: 23HF
FIN: 27HF
FIN: 39HF
FIN: 43HF
FIN: 50HF
FIN: 54HF
FIN: 66HF
FIN: 70HF

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)
No specific	AR	CAP - BLANKING
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 [23HF] (SNSG ELEM-OVHT, L WING LOOP A)
FOR [54HF] (SNSG ELEM-OVHT, L WING LOOP B)
521BT, 521EB, 521GB, 522AT
522XB, 522YB
521HB, 522AB
FOR [27HF] (SNSG ELEM-OVHT, L WING LOOP A)
521BT, 522AT
522XB, 522YB
521HB, 522AB
FOR [39HF] (SNSG ELEM-OVHT, R WING LOOP A)
FOR [70HF] (SNSG ELEM-OVHT, R WING LOOP B)
621BT, 621EB, 621GB, 622AT
621HB, 622AB
622XB, 622YB
FOR [43HF] (SNSG ELEM-OVHT, R WING LOOP A)
621BT, 622AT
621HB, 622AB
622XB, 622YB
FOR [50HF] (SNSG ELEM-OVHT, L WING LOOP B)
521BT, 522AT
FOR [66HF] (SNSG ELEM-OVHT, R WING LOOP B)
621BT, 622AT

C. Referenced Information

REFERENCE	DESIGNATION
TASK 27-80-00-866-004-A	Extending the Slats on the Ground
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 [23HF] (SNSG ELEM-OVHT, L WING LOOP A)
FOR [54HF] (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 57-41-37-000-009-A	Removal of the Access Panel
TASK 57-41-37-000-010-A	Removal of the Access Panel
TASK 57-41-37-000-011-A	Removal of the Access Panel
FOR [27HF] (SNSG ELEM-OVHT, L WING LOOP A)
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 57-41-37-000-009-A	Removal of the Access Panel
TASK 57-41-37-000-011-A	Removal of the Access Panel
FOR [39HF] (SNSG ELEM-OVHT, R WING LOOP A)
FOR [70HF] (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 57-41-37-000-009-A	Removal of the Access Panel
TASK 57-41-37-000-010-A	Removal of the Access Panel
TASK 57-41-37-000-011-A	Removal of the Access Panel
FOR [43HF] (SNSG ELEM-OVHT, R WING LOOP A)
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 57-41-37-000-009-A	Removal of the Access Panel
TASK 57-41-37-000-011-A	Removal of the Access Panel
FOR [50HF] (SNSG ELEM-OVHT, L WING LOOP B)
TASK 57-41-37-000-003-A	Removal of the Access Panel
TASK 57-41-37-000-009-A	Removal of the Access Panel
FOR [66HF] (SNSG ELEM-OVHT, R WING LOOP B)
TASK 57-41-37-000-003-A	Removal of the Access Panel
TASK 57-41-37-000-009-A	Removal of the Access Panel

3. Job Set-up
Subtask 36-22-16-941-054-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 36-22-16-860-061-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 36-22-16-865-054-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 36-22-16-010-054-A ** ON A/C NOT FOR ALL

D. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT) in position below the applicable access panel.
(2) Remove the applicable access panels:
(a) FOR [27HF] (SNSG ELEM-OVHT, L WING LOOP A)

(b) FOR [50HF] (SNSG ELEM-OVHT, L WING LOOP B)

(d) FOR [66HF] (SNSG ELEM-OVHT, R WING LOOP B)

(e) FOR [54HF] (SNSG ELEM-OVHT, L WING LOOP B), [23HF] (SNSG ELEM-OVHT, L WING LOOP A)

(f) FOR [70HF] (SNSG ELEM-OVHT, R WING LOOP B), [39HF] (SNSG ELEM-OVHT, R WING LOOP A)

Subtask 36-22-16-010-054-B ** ON A/C NOT FOR ALL

D. Get Access
(1) Put an ACCESS PLATFORM 3M (10 FT) in position below the applicable access panel.
(2) Remove the applicable access panels:
(a) FOR [27HF] (SNSG ELEM-OVHT, L WING LOOP A)

(b) FOR [50HF] (SNSG ELEM-OVHT, L WING LOOP B)

(d) FOR [66HF] (SNSG ELEM-OVHT, R WING LOOP B)

(e) FOR [54HF] (SNSG ELEM-OVHT, L WING LOOP B), [23HF] (SNSG ELEM-OVHT, L WING LOOP A)

(f) FOR [70HF] (SNSG ELEM-OVHT, R WING LOOP B), [39HF] (SNSG ELEM-OVHT, R WING LOOP A)

4. Procedure
Subtask 36-22-16-020-057-B

A. Removal of the Overheat Sensing Elements

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) Remove and discard the cable-ties (30) and the retainers (28).
(3) Remove the support-plugs (29) from the RIB7 and the RIB8.
(4) Remove the support-plugs (29) from the overheat sensing elements (11) and (12).
(5) Remove the nut (35) and the bolt (33) from the fairlead (34). Retain the removable part of the fairlead (34) and the protective sleeves (26).
(6) Remove and discard the lockwire from the connectors (19) and (22) and the nut (20).
(7) Disconnect the connector (19) from the connector (22).
(8) Remove the nut (20) from the connector (22). Remove the connector (22) from the flanged attachment (21).
(9) Put CAP - BLANKING on all the disconnected connectors.
(10) Remove the applicable overheat sensing element (9), (10), (11) or (12).

[Rev.10 from 2021] 2026.04.01 01:17:11 UTC