Which statements about helmet usage are correct?

Which statements about helmet usage are correct?

• A. Helmets shall be worn with visors down or NVGs down within 100 feet of an operating aircraft
• B. Helmets shall be worn, with chin straps fastened
• C. Helmets shall be worn only when pre-flighting above four feet for TH-73 aircraft
• D. All of the above

Answer: (D)

Wearing a helmet in TH-73 operations protects your head and eyes from hazards around the aircraft and during maintenance. Within 100 feet of an operating aircraft, you must have the visor down or NVGs down to shield your eyes from rotor wash and debris. The helmet should always be worn with the chin strap fastened so it stays secure during movement or unexpected jostling. When conducting pre-flight checks at heights above four feet, you’re also required to wear a helmet for protection from any dropped tools or contact with overhead hazards. Taken together, these requirements show that all of the stated practices are correct, so the best answer is that all of the above.

Wearing a helmet in TH-73 operations protects your head and eyes from hazards around the aircraft and during maintenance. Within 100 feet of an operating aircraft, you must have the visor down or NVGs down to shield your eyes from rotor wash and debris. The helmet should always be worn with the chin strap fastened so it stays secure during movement or unexpected jostling. When conducting pre-flight checks at heights above four feet, you’re also required to wear a helmet for protection from any dropped tools or contact with overhead hazards. Taken together, these requirements show that all of the stated practices are correct, so the best answer is that all of the above.