4.3 Rapid Decompressions and Cabin Pressurization Problems

Training Objective:

The trainee 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 Responsibilities

4.3A General

4.3A.1 Define rapid decompression and cabin pressurization problems.

4.3A.2 Identify the potential threat to flight safety caused by a rapid decompression.

4.3A.3 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, etc.).

4.3A.4 Describe the mechanical indications and physiological effects associated with each condition.

4.3A.5 Describe the effects of oxygen deficiency on human performance and identify the importance in recognizing these signs and symptoms in other crew members.

4.3A.6 Identify the importance of blowout panels and where these may be located on each aircraft type in the air operator's fleet.

4.3A.7 List the crew member procedures associated with a rapid decompression and cabin pressurization problems.

4.3A.8 Describe the effects of a rapid decompression on any unsecured objects, or persons in the immediate area.

4.3A.9 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.

4.3A.10 Identify the likely cabin conditions in a rapid decompression and the ways crew members can ensure safety for themselves and passengers.

4.3B Crew Responsibilities

4.3B.1 Describe 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, etc.).

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 methods of achieving this coordination.