VOS at Schiphol
If the crew of an aircraft indicate that there is a problem, the Airside Operations Manager can issue a VOS alarm (VOS referring to an Aircraft Accident at Schiphol). VOS 1 is the lowest alarm status and VOS 7 is the highest.
VOS overview The following table provides an overview of the types of alarm used at A.A.S.:
Alarm type When
VOS 1 • A pan-pan call issued by an airborne aircraft;
• A small incident involving an aircraft going to or from a (ground)
handling position;
• A small incident with an aircraft in a handling position.
VOS 2 • A mayday call issued by an aircraft with 1 - 50 passengers plus
crew on board;
• An accident involving an aircraft with 1 - 50 passengers plus crew
on board in a handling position;
• A mayday call issued by a cargo aircraft.
VOS 3 • A mayday call issued by an aircraft with 50 - 250 passengers plus
crew on board;
• An accident involving an aircraft with 50 – 250 passengers plus
crew on board in a handling position.
VOS 4 • A mayday call issued by an aircraft with more than 250 passengers
plus crew on board;
• An accident involving an aircraft with more than 250 passengers
plus crew on board in a handling area.
VOS 5 • A crash involving an aircraft with 1- 50 passengers plus crew on
board;
• An accident involving an aircraft with 1- 50 passengers plus crew
on board on its way to or from a handling area;
• A crash involving a cargo aircraft.
VOS 6 • A crash involving an aircraft with 50 - 250 passengers plus crew on
board;
• An accident involving an aircraft with 50 - 250 passengers plus
crew on board on its way to or from a handling area.
VOS 7 • A crash involving an aircraft with more than 250 passengers plus
crew on board;
• An accident involving an aircraft with more than 250 passengers
plus crew on board on its way to or from a handling area.
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