What risk is associated with discharging dry chemicals within 100 feet of an aircraft?

• A. Fuel contamination
• B. Ignition and damage to aircraft surfaces
• C. Operator safety hazards
• D. Environmental pollution

Answer: (B)

Discharging dry chemicals within 100 feet of an aircraft primarily poses the risk of ignition and damage to aircraft surfaces. When dry chemicals are released in close proximity to aircraft, they can settle on sensitive surfaces such as paint, plastics, and sensors. Some dry chemicals may be corrosive or abrasive, which can damage these surfaces upon contact. Additionally, if there are any ignition sources nearby, the discharge of dry chemicals could potentially create a flammable cloud, leading to the risk of fire or explosion.

Other factors are also relevant in this context. For example, fuel contamination could occur with certain agents, but the immediate concern within that radius is the direct interaction with the aircraft structure and systems. Operator safety hazards are certainly a consideration, especially with high-pressure discharge, but the specific damage to the aircraft takes precedence in this scenario. Environmental pollution from the chemicals may be a long-term concern, but it doesn’t directly relate to the immediate effects of discharging them near the aircraft. Hence, the primary risk centers around ignition and damage to the aircraft surfaces, making this the correct answer.