Indoor Drone Inspection Safety

Key Hazards

• Collision with ceilings, walls, piping, racks, or equipment
• Loss of GPS or unreliable position-hold indoors
• Airflow from fans, ventilation, doors, or process systems
• Dust or debris entering motors and propellers
• Workers entering the indoor flight area
• Aircraft damaging sensitive, energized, or operating equipment

2–3 Minute Talk Script

Indoor drone inspections can reduce climbing and access exposure, but enclosed facilities create narrow flight paths, unpredictable airflow, poor lighting, and limited emergency landing options.

The pilot should not assume the aircraft will behave indoors as it does outside. GPS may be unavailable, positioning sensors may be affected by dark, reflective, repetitive, or transparent surfaces, and automatic return functions may not be suitable.

The route should be inspected for ceilings, beams, piping, cables, racks, sprinklers, lighting, fans, moving machinery, energized systems, and fragile process equipment.

Ventilation fans, open doors, pressure changes, heat plumes, and process airflow can move a lightweight drone unexpectedly. Air movement should be evaluated before the aircraft enters tight spaces.

Dust, fibers, moisture, corrosive material, and airborne debris can affect motors, propellers, sensors, and electronics. The aircraft should be suitable for the environment and inspected after exposure.

The indoor area should be controlled so workers do not walk into the flight path or become distracted by the aircraft. Production and maintenance activities may need to be paused or separated.

Lighting should support both aircraft visibility and camera needs without creating glare. The pilot should maintain a direct route to a safe landing area and avoid flying beyond reliable communication and visual awareness.

If the environment cannot support stable control, safe separation, and a planned recovery, another inspection method should be used.

Safety Reminders

• Do not assume GPS or automatic flight features will work indoors.
• Map ceilings, piping, racks, cables, fans, and equipment.
• Evaluate airflow and pressure changes before entry.
• Control dust, debris, moisture, and environmental exposure.
• Keep workers outside the indoor flight area.
• Maintain a clear route to a safe landing location.
• Use another inspection method if stable control cannot be maintained.

Ask the Crew

• Which positioning and automatic features will be unavailable indoors?
• What overhead or side obstacles create the tightest clearances?
• Could fans or process airflow move the aircraft?
• How will people and operating equipment be separated from the flight?
• Where can the drone land if control becomes unstable?