Installation of the Aft Cargo-Compartment Temperature-Selector

TASK 21-43-17-400-001-A
Installation of the Aft Cargo-Compartment Temperature-Selector

FIN: 15HC ** ON A/C NOT FOR ALL

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 21-63-00-710-004-A	Operational Test of the Cockpit and Cabin Temperature Control with CFDS/MCDU
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
Aft Cargo-Compartment Temperature-Selector 15HC

3. Job Set-up
Subtask 21-43-17-861-051-A ** ON A/C NOT FOR ALL

A. Make sure that the aircraft electrical circuits are de-energized (Ref. AMM TASK 24-41-00-862-002).

4. Procedure
Subtask 21-43-17-420-050-A ** ON A/C NOT FOR ALL

A. Install the Temperature Selector
(1) Install the selector (2). Put the locating stud (3) up and opposite the black mark (4).
(2) Install the nut (6), the washer (5) and tighten.
(3) Align the knob (7) with the flat surface of the shaft and push it until it is fully engaged.
(4) Moderately tighten the two screws (8).
(5) Remove the CAP-BLANKING from each electrical connector and receptacle.
(6) Make sure that all the electrical connections are clean and in the correct condition.
(7) Connect the electrical connector (1) to the selector (2) and tighten the two captive screws at the rear of the connector (1).
(8) Put the panel 22VU in its housing.
(9) Turn the four QAD fasteners of the panel 22VU a quarter turn.

Subtask 21-43-17-710-050-A ** ON A/C NOT FOR ALL

B. Do an operational test of the cockpit and cabin temperature control (Ref. AMM TASK 21-63-00-710-004).

5. Close-up
Subtask 21-43-17-865-052-A ** ON A/C NOT FOR ALL

A. 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
49VU	AIR COND/AFT CARGO/VENT/CTL & MONG	31HN	C07
** ON A/C NOT FOR ALL
49VU	AIR COND/AFT CARGO/VENT & HTG/CTL & MONG	31HN	C07
** ON A/C NOT FOR ALL
122VU	AIR COND/AFT CARGO VENT/FAN	30HN	S22

Subtask 21-43-17-942-050-A ** ON A/C NOT FOR ALL

B. Make sure that the work area is clean and clear of tools and other items.

Subtask 21-43-17-862-050-A ** ON A/C NOT FOR ALL

C. De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.02 06:11:20 UTC