4.3 Rapid Decompression and Cabin Pressurization Problems

Training Objective:

The crew member will be able to recognize a rapid decompression and cabin pressurization problems, associated crew responsibilities and the established procedures for dealing with each condition.


Crew Member Responsibilities

4.3A General

4.3A.1 Identify the potential causes of a rapid decompression (e.g. fuselage failure, air pack failure) and cabin pressurization problems (e.g. door seal leak, cracked window, system malfunction).

4.3A.2 Describe the mechanical indications and physiological effects associated with each condition.

4.3A.3 Describe the effects of oxygen deficiency on human performance and identify the importance in recognizing the symptoms in other crew members.

4.3A.4 Describe the effect a rapid decompression could have on any unsecured objects or persons in the immediate area.

4.3A.5 Describe the likely aircraft attitude associated with an emergency or rapid descent following a rapid decompression, and what is meant by safe altitude and the importance of reaching a safe altitude quickly.

4.3B Crew Member Responsibilities

4.3B.1 Describe the means and procedures for crew to passenger communication during a rapid decompression and cabin pressurization problems.

4.3B.2 Identify the immediate actions crew members must take in the event of a rapid decompression.

4.3B.3 Describe the crew communication procedures (e.g. signal for beginning a post-decompression walk around, who is responsible for giving this signal and when it will be given).

4.3B.4 List the crew member duties in a post-decompression walk around and safety priorities.

4.3B.5 Identify the importance of crew coordination and the methods of achieving this coordination.

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