Installation of the TDC AC Sensor 1(2)

TASK 24-22-18-400-001-A
Installation of the TDC AC Sensor 1(2)

ZONE: 126
FIN: 50XU1 ** ON A/C NOT FOR ALL
FIN: 50XU2 ** 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	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
126	LATERAL AVIONIC COMPARTMENT
822

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-740-004-A	Operational Check of the GPCU via the CFDS
Time Delay Closing (TDC) AC Sensor

3. Job Set-up
Subtask 24-22-18-860-050-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the access door 822 of the electronics compartment.
(2) Make sure that the access door 822 is open.
(3) Make sure that the access door 103VU (5) is open.

Subtask 24-22-18-865-051-A ** ON A/C NOT FOR ALL

B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 50XU1 (SENSORTDC AC, 1)
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG1/DISC	1XT	T24
FOR FIN: 50XU2 (SENSORTDC AC, 2)
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/IDG2/DISC	2XT	T25

4. Procedure
Subtask 24-22-18-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the TDC AC Sensor
(1) Put the sensor (3) in position on the barrels (2) of the base (1).
(2) Tighten the screws (4).

Subtask 24-22-18-865-052-A ** ON A/C NOT FOR ALL

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
122VU	ELEC/GCU/2	2XU2	T27
122VU	ELEC/GCU/1	2XU1	T26
122VU	ELEC/IDG2/DISC	2XT	T25
122VU	ELEC/IDG1/DISC	1XT	T24

Subtask 24-22-18-710-050-A ** ON A/C NOT FOR ALL

C. Do the operational check of the GPCU with the CFDS (Ref. AMM TASK 24-41-00-740-004).

5. Close-up
Subtask 24-22-18-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 103VU (5).
(3) Close the access door 822.
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:22:06 UTC