Which of the following is listed as a potential cause of rapid/explosive decompression?

• A. Blown window
• B. Turbulence
• C. Electrical malfunction
• D. Faulty landing gear

Answer: (A)

Rapid/explosive decompression happens when the cabin is suddenly breached, allowing high‑pressure air to rush out and the cabin pressure to drop quickly. A window that blows out provides a direct breach path, so the outside air gushes in and the pressure equalizes in moments. That immediate hole is the classic mechanism for an explosive decompression.

Turbulence, while it can be severe and cause injuries, doesn’t create a rapid breach of the pressurized hull. Electrical malfunction could affect systems but isn’t by itself a direct cause of a sudden pressure loss. Faulty landing gear relates to ground handling or landing systems and doesn’t produce a rapid loss of cabin pressure. So the blown window is the most plausible cause among the choices.