ASN Wikibase Occurrence # 321511
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| Date: | Friday 8 May 2009 |
| Time: | 21:59 |
| Type: |  Boeing 747-48EF |
| Owner/operator: | Asiana Airlines |
| Registration: | HL7419 |
| MSN: | 25781/1044 |
| Year of manufacture: | 1994 |
| Total airframe hrs: | 72700 hours |
| Cycles: | 12296 flights |
| Engine model: | General Electric CF6-80C2B1F |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial, repaired |
| Category: | Accident |
| Location: | near Frankfurt International Airport (FRA) -
 Germany
|
| Phase: | Approach |
| Nature: | Cargo |
| Departure airport: | Wien-Schwechat International Airport (VIE/LOWW) |
| Frankfurt International Airport (FRA/EDDF) | |
| Investigating agency: | BFU |
| Confidence Rating: |  Accident investigation report completed and information captured |
The Boeing 747-48EF cargo plane was on approach to runway 25L at Frankfurt International Airport, Germany. In the area of the outer marker to runway 25L at a height of 1400 ft AMSL the landing flaps were moved to the 30° position. The approach speed at this time was 160 kt (IAS). Shortly after actuating the flap lever, the crew heard an impact sound and noticed vibrations. The plane rolled about 1° to the left. The autopilot levelled out the incline and the aircraft continued its approach. The landing was without further problems on runway 25L. The aircraft then rolled to the parking position.
It appeared a part of the left wing flap (Inboard Fore Flap) with dimensions of about 4.5 x 1 m was missing. The fracture was about half a metre to the left of the inner flap attachment. The remaining flap piece was twisted around the inner attachment point and was jammed between the attachment and the fuselage. Two connecting rods between of the front and middle landing flaps were broken or torn out.
The outer fuselage skin of the aircraft was penetrated in the area between the fairing outlet and the rear cargo door over a length of 3.5 m. In this area, the ribs showed heavy damage.
The missing flap part was located in a forest on December 12, 2009.
Conclusions: "The flap fitting was destroyed by a pronounced vibration fracture, which probably originated in a corrosion cavity ."
Accident investigation:
 |
|
Sources:
History of this aircraft
Other occurrences involving this aircraft
| 30 November 1998 | HL7419 | Asiana Airlines | 0 | New York-John F. Kennedy International Airport, NY (JFK) |  |
sub |
Revision history:
| Date/time | Contributor | Updates |
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