emergency life_safety ai_generated true

AI tells bystanders to approach a helicopter from the front or sides, but the correct approach is from the rear or sides (in pilot's view) to avoid rotor blades; front approach risks tail rotor strike

ID: emergency/helicopter-approach-rear

Also available as: JSON · Markdown · 中文
90%Fix Rate
85%Confidence
1Evidence
2024-01-25First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
FAA Helicopter Flying Handbook (FAA-H-8083-21B) active — — —
European Helicopter Safety Team (EHEST) guidelines active — — —

Root Cause

The AI confuses general aviation aircraft (where front approach is safe) with helicopters, where the tail rotor is invisible and dangerous; the correct approach is from the sides or rear (within pilot's line of sight) to avoid being struck by the main or tail rotor.

generic

中文

AI混淆了通用航空飞机（前方接近安全）与直升机，其中尾桨不可见且危险；正确接近方式是从侧面或后方（在飞行员视线内）以避免被主旋翼或尾桨击中。

Official Documentation

https://www.faa.gov/regulations_policies/handbooks_manuals/aviation/helicopter_flying_handbook

Workarounds

  1. 95% success Always approach a helicopter from the sides or rear, within the pilot's field of view. Make eye contact with the pilot before moving closer. Never approach from the front (tail rotor danger) or directly behind (main rotor downwash). Stay low but do not crawl. 
    Always approach a helicopter from the sides or rear, within the pilot's field of view. Make eye contact with the pilot before moving closer. Never approach from the front (tail rotor danger) or directly behind (main rotor downwash). Stay low but do not crawl.
  2. 90% success If the helicopter is on a slope, approach from the uphill side to avoid the main rotor dip. Follow crew member hand signals. Do not carry loose items that could be blown into the rotor. 
    If the helicopter is on a slope, approach from the uphill side to avoid the main rotor dip. Follow crew member hand signals. Do not carry loose items that could be blown into the rotor.

中文步骤

  1. Always approach a helicopter from the sides or rear, within the pilot's field of view. Make eye contact with the pilot before moving closer. Never approach from the front (tail rotor danger) or directly behind (main rotor downwash). Stay low but do not crawl.
  2. If the helicopter is on a slope, approach from the uphill side to avoid the main rotor dip. Follow crew member hand signals. Do not carry loose items that could be blown into the rotor.

Dead Ends

Common approaches that don't work:

  1. 95% fail

    Advising to approach from the front to 'make eye contact with the pilot'; this puts the person in the tail rotor danger zone if the helicopter is on the ground with rotors turning

  2. 80% fail

    Suggesting to approach from the side to 'avoid the rotor wash'; side approach is correct only if the pilot is looking that way, but the correct method is always from the rear or sides with pilot acknowledgment

  3. 90% fail

    Recommending to crawl under the helicopter to avoid rotor blades; this is extremely dangerous as the helicopter may settle or shift, and the tail rotor is still a hazard