ASN Wikibase Occurrence # 147077
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| Date: | Thursday 22 September 1994 |
| Time: | 07:12 UTC |
| Type: |  Boeing 747-4B5 |
| Owner/operator: | Korean Air |
| Registration: | HL7479 |
| MSN: | 24200/748 |
| Year of manufacture: | 1989 |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Minor |
| Category: | Incident |
| Location: | near Zürich-Kloten Airport (ZRH) -
 Switzerland
|
| Phase: | Initial climb |
| Nature: | Ferry/positioning |
| Departure airport: | Zürich-Kloten Airport (ZRH/LSZH) |
| Busan-Gimhae (Pusan) International Airport (PUS) | |
| Confidence Rating: |  Information is only available from news, social media or unofficial sources |
September 14, Korean Air Boeing 747 HL7479 encountered a severe hailstorm over Elba, Italy. The aircraft sustained severe damage to the radome, cockpit windows and engines but managed to reach destination Zürich safely. Some repair work was done, but the aircraft needed to be ferried to Pusan for final repairs. Boeing released the aircraft with some take-off performance changes, which included a limited gross weight by 70,000 pounds and an increased takeoff speeds for V1, V2 and VR by 15, 17 and 14 knots respectively. The crew were cleared for a runway 14 takeoff and ZUE 5P departure. After a long take-off run, the aircraft lifted off the runway at the very end and climbed slowly. At 900m pas the runway end the aircraft cleared some buildings at just 50m.
It appeared that, for a runway 14 takeoff at intersection D, the aircraft was overloaded by 86,700 pounds.
PROBABLE CAUSE: "Ignoring of the flight release information of the manufacturer for a ferry flight with a by hail damaged airplane."
Sources:
Schlussbericht des Büros für Flugunfalluntersuchungen über den Vorfall des Flugzeuges Boeing B-747-400, HL-7479 vom 22. September 1994 auf dem Flughafen Zürich ; nr 1597.
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 26-Jul-2012 07:20 | harro | Added |
Corrections or additions? ... Edit this accident description
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