Removal of the Handle Proximity Sensor

TASK 52-22-71-000-805-A
Removal of the Handle Proximity Sensor

FIN: 33WN1 ** ON A/C NOT FOR ALL
FIN: 33WN2 ** ON A/C NOT FOR ALL
FIN: 33WN3 ** ON A/C NOT FOR ALL
FIN: 33WN4 ** ON A/C NOT FOR ALL

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	CAP - BLANKING
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
833, 834, 843, 844

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 25-62-00-481-001-A	Special Precautions before Work on the Offwing Escape-Slide Systems
TASK 52-22-00-410-802-A	Closing of the Overwing Emergency-Exit Door from the Passenger Compartment
Handle Proximity Sensor

3. Job Set-up
Subtask 52-22-71-860-065-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Make sure that applicable overwing emergency-door 833 ( 843) or 834 ( 844) is closed, latched and locked (Ref. AMM TASK 52-22-00-410-802).
(3) Obey the special precautions before you start work on the door (Ref. AMM TASK 25-62-00-481-001).
(4) On the overhead panel, on the SIGNS section of the control panel 25VU, make sure that:

The EMER EXIT LH switch is in the OFF position.
The NO PED switch is in the OFF position.

(5) Put the WARNING NOTICE(S) in position to tell persons not to operate these switches.
(6) On Flight Attendant Panel (FAP) 120RH, make sure that the EMER button and its light are off.

Subtask 52-22-71-865-062-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	LIGHTING/EMER LT/CABIN	2WL	H04
49VU	LIGHTING/EMER LT/CABIN	1WL	H03
121VU	EIS/SDAC1 AND 2/DOOR/DET/PAX	48WV	P05
122VU	FLIGHT LOCK OWD	40WN	U16
122VU	LIGHTING/CABIN/EMER/LT	3WL	V07

Subtask 52-22-71-010-054-A ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove the handle cover (1) from the related overwing emergency-exit door.

4. Procedure
Subtask 52-22-71-020-054-A ** ON A/C NOT FOR ALL

A. Removal of the Handle Proximity Sensor
(1) Disconnect the electrical connector (3) from the sensor (4).
(2) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove and discard the lockwire:

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.

(a) Remove and discard the lockwire from the locknut (7).
(4) Remove the locknut (7) with the lockwasher (6).
(5) Remove the sensor (4) from the bracket (5).

[Rev.10 from 2021] 2026.04.02 06:27:47 UTC