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| Date: | Wednesday 24 October 2007 |
| Time: | 14:38 |
| Type: |  Boeing 737-330 |
| Owner/operator: | Lufthansa |
| Registration: | D-ABXY |
| MSN: | 24563/1801 |
| Year of manufacture: | 1990 |
| Engine model: | CFMI CFM56 |
| Fatalities: | Fatalities: 0 / Occupants: |
| Other fatalities: | 0 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | 2.4 NM NNE of the Kloten beacon -
 Switzerland
|
| Phase: | Approach |
| Nature: | Passenger - Scheduled |
| Departure airport: | Frankfurt International Airport (FRA/EDDF) |
| Zürich-Kloten Airport (ZRH/LSZH) | |
| Investigating agency: | STSB |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
Close encounter between an arriving IFR (B737-300 D-ABXY) and a departing IFR aircraft (A320 JY-AYF). When on medium final the arriving aircraft carried out a go-around procedure and conflicted with a departing aircraft following the published SID in a left turn to cross the final approach path.
Causes
The serious incident arose as a result of the inadvertent convergence of a commercial aircraft taking off from runway 10 and a commercial aircraft going around on runway 14, which involved a high risk of collision. It is attributable to a runway utilisation concept in a ‘Bise' wind situation which overtaxed the air traffic controllers involved because it featured the following shortcomings:
- Procedural separation did not exist between the standard departure route VEBIT TWO ECHO from runway 10 and the standard missed approach procedure for runway 14.
- The corresponding safety clarification had registered the hazard only inadequately.
- The air traffic controllers had been inadequately trained in respect of the possible conflict situation and were therefore surprised by it.
Accident investigation:
 |
|
Sources:
STSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Sep-2024 14:20 | ASN | Added |
| 12-Sep-2024 16:55 | ASN | Updated [Time, Aircraft type, Registration, Cn, Operator, Location, Phase, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
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