AFT Cargo-Compartment Fan Fault A320

1. Possible Causes:

-CONT-AIR COND SYSTEM 1 (47HH)

-wiring

2. Job Set-up Information

A. Referenced Information

Ref. AMM 21-61-00-710-001 Operational Test of the Pack Temperature-Control System

Ref. AMM 21-61-34-000-002 Removal of the Air-Conditioning System Controller

Ref. AMM 21-61-34-400-002 Installation of the Air-Conditioning System Controller

Ref. ASM 21-63-03

3.Fault Confirmation

SUBTASK 21-28-00-710-053-A

A. Test

NOTE:  This fault isolation procedure is applicable although the AFT cargo-compartment ventilation system is not installed.

(1) Do the operational test of the pack temperature-control system Ref. AMM 21-61-00-710-001.

4. Fault Isolation

SUBTASK 21-28-00-810-067-C

A. If the test gives the maintenance message FWD CARGO FAN OR SPLY:

-replace the CONT-AIR COND SYSTEM 1 (47HH) Ref. AMM 21-61-34-000-002 and Ref. AMM 21-61-34-400-002.

(1)If the fault continues:

(a)Remove the CONT-AIR COND SYSTEM 1 (47HH) Ref. AMM 21-61-34-000-002.

(b)Do a check and repair the wiring between:

-connector (47HH/AB) pin 4K and GND Ref. ASM 21-63-03.

(c) Install the CONT-AIR COND SYSTEM 1 (47HH) Ref. AMM 21-61-34-400-002.

SUBTASK 21-28-00-710-062-A

B. Do the test given in Para. 3.