Objectives : 379,385,376,378,223,28,386,377,383 Version : 01 Ref. : XXX A/C MSN :

1. AIR CONDITIONING ABNORMAL OPERATION (A) Objectives : 379,385,376,378,223,28,386,377,383 Version : 01 Ref. : XXX A/C MSN : Creation : 13/01/97 Developer : TW MENU

2. This is a demonstration of a pack one overheat in-flight. You are the PNF. You are currently flying at your cruise flight level, everything is normal. MENU

5. Let’s look at the fault indications; • A fault message and associated checklist on the E/WD. • the ECAM BLEED page has been automatically called to show amber indications • a FAULT light has illuminated on the Air Conditioning Control Panel. MENU

6. On the E/WD, read the title of the failure. MENU

7. Before you begin, notice that the pack flow control valve has closed. This occurred automatically when the overheat was detected to protect the pack from damage. The valve color indication is amber because the valve position disagrees with the switch position. The compressor outlet temperature is also amber because the temperature limit has been exceeded. MENU

8. Notice also that since the pack valve has closed the supply line from the pack to the mixer unit has turned amber. This happens because there is no air flow from the pack to the mixing unit. MENU

9. The PF will ask you to perform the ECAM actions. You, as PNF Read and Perform the ECAM Actions MENU

10. The first step on ECAM directs you to turn off PACK1. This is to match pack switch and pack valve position and prepare to reset the pack. Note that the fault light on the Pack pushbutton switch is illuminated to help you locate it and to indicate the overheat condition. Switch off PACK 1. MENU

11. The first step on ECAM directs you to turn off PACK1. This is to match pack switch and pack valve position and prepare to reset the pack. Note that the fault light on the Pack pushbutton switch is illuminated to help you locate it and to indicate the overheat condition. No. Switch off PACK 1.

12. The first step on ECAM directs you to turn off PACK1. This is to match pack switch and pack valve position and prepare to reset the pack. Note that the fault light on the Pack pushbutton switch is illuminated to help you locate it and to indicate the overheat condition. No. To switch off Pack 1 press PACK 1 pb sw.

13. When pack one is turned off, an OFF light illuminates in the switch and the pack valve indication turns green showing valve /switch agreement. Notice that the FAULT light is still on. MENU

14. The completed procedural step disappears from the E/WD. Let’s move on to the next step of the procedure, which has two parts. MENU

15. The first part, a condition line, is not an action but analysis. We are to determine if the pack overheat is out. MENU

16. The fault light in the switch is extinguished, and the compressor outlet temperature indication is green; so we can conclude that the overheat is out. MENU

17. Therefore, accomplish the next ECAM action by turning Pack 1 back on. Switch ON PACK 1. MENU

18. Therefore, accomplish the next ECAM action by turning Pack 1 back on. No. To switch on PACK 1 press on the PACK 1 pb sw.

19. Therefore, accomplish the next ECAM action by turning Pack 1 back on. No. To switch on PACK 1 press on the PACK 1 pb sw.

20. When the pack switch is turned back on; • the off light is extinguished, • normal memos replace the failure message on the E/WD, because the failure condition no longer exists, • and the CRUISE page returns to the System Display. MENU

21. You have now completed the ECAM actions. The pack overheat condition has gone and the pack is reset. Module completed MENU NEXT

22. MENU LIST OF SUBJECTS PACK 1 OVERHEAT AUDIO GLOSSARY FCOM RETURN EXIT