Event Details

Title:Loss of separation south east of Helsinki-Vantaa, Finland on 11.1.2002
Micro summary:Loss of separation between an An-12 and Boeing 757.
Event Date:2002-01-11
File Name:2002-01-11-FI.pdf
Publishing Agency:Finland Accident Investigation Board (AIB)
Publishing Country:Finland
Report number:C 2/2002 L
Site of event:South east of Helsinki-Vantaa airport
First AirplaneSecond Airplane
Departure:Helsinki-Vantaa Airport, Helsinki, FinlandUnknown
Destination:Kurumoch Airport, Samara, RussiaHelsinki-Vantaa Airport, Helsinki, Finland
Airplane Type(s):Antonov An -12Boeing 757
Flight Phase:ClimbDescent
Operator(s):Aviast Joint StockFinnair
Type of flight:RevenueRevenue
Serious Injuries:00
Other Injuries:00
Executive Summary:On Friday 11.01.2002 at 15.55 (Finnish time is used in this investigation report) a loss separation occurred south east of Helsinki-Vantaa airport when An -12 cargo aircraft RA11962 call sign VVA9023 used by Aviast Joint Stock Ltd and Boeing B757 airliner OH-LBU call sign FIN1942 used fy Finnair passed approximately 0.25 nautical miles (NM) from each other with vertical sepa- ration being 700 feet.

The Accident Investigation Board (AIB), Finland was informed of the incident on 12.01.2002 when it received the incident reports filed by the commander of FIN1942 as well as Helsinki-Vantaa APP (approach) and DEP (departure) radar controllers.

3.2 Cause of the incident
Loss of vertical separation took place, when VVA9023 continued climb above the cleared flight level. Situation did not develop dangerous, because FIN1942 took evasive manoeuvre of VVA9023.
Learning Keywords:Operations - Airspace - Air Proximity
Operations - Airspace - Air Traffic Control
Operations - Altitude Excursion


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