Narrative:Saudi Arabian Airlines flight 931 from Dammam, Saudi Arabia, lost the inboard fore flap of the right wing on touchdown at Frankfurt International Airport, Germany.
The aircraft landed on runway 07R in darkness at 05:07 hours local time and taxied to parking position S506 on the cargo apron. Some three hours later several holes and scratches were noticed on the aircraft fuselage along with damage on the leading edge of the vertical stabilizer. A subsequent inspection showed that the inboard fore flap of the right wing, measuring 8x1 meters, was missing.
The missing part along with attachment parts were located next to the runway near the touchdown area.
Probable Cause:
Conclusions:
The flap holder was destroyed by a pronounced oscillation fracture (vibratory corrosion cracking), which started in a corrosion trough.
Accident investigation:
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Investigating agency: | BFU Germany  |
Status: | Investigation completed |
Duration: | 1 year and 9 months | Accident number: | BFU18-1394-AX | Download report: | Final report
| Language: | English |
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Classification:
Issue with flap(s)
Runway mishap
Sources:
» BFU
Photos
Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does
not display the exact flight path.
Distance from Dammam-King Fahad International Airport to Frankfurt International Airport as the crow flies is 4342 km (2714 miles).
Accident location: Exact; deduced from official accident report.
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.