|
| Title: | Proximity incident, Aircraft incident in Helsinki TMA on 24 March 1999 |
| Micro summary: | ATC error results in a near-miss between a Beech 1900D and Douglas DC-9 |
| Event Time: | 1999-03-24 at 1721 UTC |
| File Name: | 1999-03-24-FI.pdf |
| Publishing Agency: | Finland Accident Investigation Board (AIB) |
| Publishing Country: | Finland |
| Report number: | C 3/1999 L |
| Pages: | 19 |
| Site of event: | Helsinki Terminal Control Area (TMA) near Vihti |
| First Airplane | Second Airplane | ||
| Departure: | Helsinki-Vantaa Airport, Helsinki, Finland | Kungsängen Airport, Norrköping, Sweden | |
| Destination: | Kajaani Airport, Kajaani, Finland | Helsinki-Vantaa Airport, Helsinki, Finland | |
| Airplane Type(s): | Douglas DC-9-51 | Beech 1900D | |
| Flight Phase: | Climb | Approach | |
| Registration(s): | OH-LYY | SE-KXY | |
| Operator(s): | Finnair | Air Express | |
| Type of flight: | Revenue | Revenue | |
| Occupants: | 122 | ???? | |
| Fatalities: | 0 | ||
| Serious Injuries: | 0 | ||
| Minor/Non-Injured: | 122 | ||
| Other Injuries: | 0 |
| Executive Summary: | On Wednesday 24 March 1999 at 17.21 UTC (all times in this report are UTC times, Finnish local time -2 hours) there was an air traffic incident within Helsinki Terminal Control Area (TMA) near Vihti, in which the required minimum separation between two aircraft was lost. Finnair DC-9-51, registered OH-LYY, call sign FIN 387, was departing from Helsinki while a Beech 1900 D operated by Air Express i Norrköping AB, registered SE-KXY, call sign GOT 603 was inbound to Helsinki. The aircraft were on intercepting flight paths, approaching each other without the required vertical separation. 3.2 Probable cause The incident was caused by misinterpretation of a message between COR and DEP workstations at the approach control office. The reason for the misinterpretation was inadequate wording of the message. |
| Learning Keywords: | Operations - Airspace - Air Proximity |
| Operations - Airspace - Air Traffic Control | |
| Other - Workplace Culture or Management |
Accident Reports on DVD, Copyright © 2006 by Flight Simulation Systems, LLC. All Rights Reserved. All referenced trademarks are the property of their respective owners.www.fss.aero