W DOC AIRBUS | MMEL ITEMS A320F

APU Leak Detection Loop


36-22-03APU Leak Detection Loop
Applicable to: -
36-22-03-A APU bleed check valve replaced by a plate
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(m)
May be inoperative provided that:

1)
The APU bleed check valve is removed and replaced by a plate, and

2)
The APU bleed air supply system is considered inoperative.

36-22-03-B No FL limitation
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(o)
May be inoperative provided that:

1)
ETOPS is not conducted, and

2)
The AIR APU BLEED LEAK alert was not displayed during the previous flight, and

3)
The ENG 1 BLEED pb-sw is set to OFF, and

4)
The PACK 1 pb-sw is set to OFF, and

5)
The X BLEED selector is set to SHUT, and

6)
The APU BLEED pb-sw is set to OFF, and

7)
The aircraft is not operated in known or forecast icing conditions, and

8)
The speedbrakes are operative.

36-22-03-C Limitation to 31500 ft
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(o)
May be inoperative provided that:

1)
ETOPS is not conducted, and

2)
The AIR APU BLEED LEAK alert was not displayed during the previous flight, and

3)
The ENG 1 BLEED pb-sw is set to OFF, and

4)
The PACK 1 pb-sw is set to OFF, and

5)
The X BLEED selector is set to SHUT, and

6)
The APU BLEED pb-sw is set to OFF, and

7)
The aircraft is not operated in known or forecast icing conditions, and

8)
The altitude is limited to 31500 ft ( 9600 m).

36-22-03-E APU bleed check valve checked operative
Repair intervalNbr installedNbr requiredPlacard
B
06.04.2026
10No
(m)
May be inoperative provided that:

1)
The APU bleed check valve is checked operative, and

2)
The AIR APU BLEED LEAK alert was not displayed during the previous flight, and

3)
The APU bleed air supply system is considered inoperative.

36-22-03APU Leak Detection Loop
Applicable to: -
36-22-03-A APU bleed check valve replaced by a plate
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(m)
May be inoperative provided that:

1)
The APU bleed check valve is removed and replaced by a plate, and

2)
The APU bleed air supply system is considered inoperative.

36-22-03-B Limitation to 37000 ft
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(o)
May be inoperative provided that:

1)
ETOPS is not conducted, and

2)
The AIR APU BLEED LEAK alert was not displayed during the previous flight, and

3)
The ENG 1 BLEED pb-sw is set to OFF, and

4)
The PACK 1 pb-sw is set to OFF, and

5)
The X BLEED selector is set to SHUT, and

6)
The APU BLEED pb-sw is set to OFF, and

7)
The aircraft is not operated in known or forecast icing conditions, and

8)
The altitude is limited to 37000 ft ( 11200 m), and

9)
The speedbrakes are operative.

36-22-03-C Limitation to 31500 ft
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(o)
May be inoperative provided that:

1)
ETOPS is not conducted, and

2)
The AIR APU BLEED LEAK alert was not displayed during the previous flight, and

3)
The ENG 1 BLEED pb-sw is set to OFF, and

4)
The PACK 1 pb-sw is set to OFF, and

5)
The X BLEED selector is set to SHUT, and

6)
The APU BLEED pb-sw is set to OFF, and

7)
The aircraft is not operated in known or forecast icing conditions, and

8)
The altitude is limited to 31500 ft ( 9600 m).

36-22-03-D No FL limitation
Repair intervalNbr installedNbr requiredPlacard
B
06.04.2026
10No
(o)
May be inoperative provided that:

1)
ETOPS is not conducted, and

2)
The AIR APU BLEED LEAK alert was not displayed during the previous flight, and

3)
The ENG 1 BLEED pb-sw is set to OFF, and

4)
The PACK 1 pb-sw is set to OFF, and

5)
The X BLEED selector is set to SHUT, and

6)
The APU BLEED pb-sw is set to OFF, and

7)
The aircraft is not operated in known or forecast icing conditions, and

8)
The speedbrakes are operative.

NOTE:
In the case of depressurization at altitudes higher than 37000 ft ( 11200 m), oxygen masks may drop down during the descent.
36-22-03-E APU bleed check valve checked operative
Repair intervalNbr installedNbr requiredPlacard
B
06.04.2026
10No
(m)
May be inoperative provided that:

1)
The APU bleed check valve is checked operative, and

2)
The AIR APU BLEED LEAK alert was not displayed during the previous flight, and

3)
The APU bleed air supply system is considered inoperative.

36-22-03APU Leak Detection Loop
Applicable to: -
36-22-03-A APU bleed check valve replaced by a plate
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(m)
May be inoperative provided that:

1)
The APU bleed check valve is removed and replaced by a plate, and

2)
The APU bleed air supply system is considered inoperative.

36-22-03-B No FL limitation
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(o)
May be inoperative provided that:

1)
ETOPS is not conducted, and

2)
The AIR APU BLEED LEAK alert and the APU LEAK FED BY ENG line were not displayed during the previous flight, and

3)
The ENG 1 BLEED pb-sw is set to OFF, and

4)
The PACK 1 pb-sw is set to OFF, and

5)
The X BLEED selector is set to SHUT, and

6)
The APU BLEED pb-sw is set to OFF, and

7)
The PACK 2 is operative, and

8)
The aircraft is not operated in known or forecast icing conditions along the intended route, and

9)
The speedbrakes are operative.

36-22-03-C Limitation to 31500 ft
Repair intervalNbr installedNbr requiredPlacard
C
13.04.2026
10No
(o)
May be inoperative provided that:

1)
ETOPS is not conducted, and

2)
The AIR APU BLEED LEAK alert and the APU LEAK FED BY ENG line were not displayed during the previous flight, and

3)
The ENG 1 BLEED pb-sw is set to OFF, and

4)
The PACK 1 pb-sw is set to OFF, and

5)
The X BLEED selector is set to SHUT, and

6)
The APU BLEED pb-sw is set to OFF, and

7)
The PACK 2 is operative, and

8)
The aircraft is not operated in known or forecast icing conditions along the intended route, and

9)
The altitude is limited to 31500 ft ( 9600 m).

36-22-03-E APU bleed check valve checked operative
Repair intervalNbr installedNbr requiredPlacard
B
06.04.2026
10No
(m)
May be inoperative provided that:

1)
The APU bleed check valve is checked operative, and

2)
The AIR APU BLEED LEAK alert and the APU LEAK FED BY ENG line were not displayed during the previous flight, and

3)
The APU bleed air supply system is considered inoperative.