Accident Boeing 737-8AS (WL) EI-CSN, Monday 25 June 2007
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Date:Monday 25 June 2007
Time:17:46
Type:Silhouette image of generic B738 model; specific model in this crash may look slightly different    
Boeing 737-8AS (WL)
Owner/operator:Ryanair
Registration: EI-CSN
MSN: 29927/727
Year of manufacture:2000
Total airframe hrs:15309 hours
Engine model:CFMI CFM56-7B26
Fatalities:Fatalities: 0 / Occupants: 180
Other fatalities:0
Aircraft damage: Minor, repaired
Category:Accident
Location:Venice-Treviso Airport (TSF) -   Italy
Phase: Landing
Nature:Passenger - Scheduled
Departure airport:Gerona-Costa Brava Airport (GRO/LEGE)
Destination airport:Venice-Treviso Airport (TSF/LIPH)
Investigating agency: ANSV
Confidence Rating: Accident investigation report completed and information captured
Narrative:
Ryanair flight 9513, a Boeing 737-800, lost a wheel of the nose landing gear shortly after touchdown on runway 07 at Venice-Treviso Airport, Italy. Speed at the time was about 100 knots and the aircraft yawed slightly to the left. The rollout was continued without incident and the aircraft taxied to the stand.
It appeared that the nose landing gear axle had failed at 15309 cycles since new, which is 1/5th of its expected lifetime.

PROBABLE CAUSE (translated from Italian): The cause of the accident was a breakage of the front wheel axle, which caused the front left wheel to come off during the landing phase. The axle rupture occurred due to a stress corrosion phenomenon triggered by a preliminary generalised corrosion attack in the most stressed area.

Accident investigation:
cover
  
Investigating agency: ANSV
Report number: final report
Status: Investigation completed
Duration: 1 year 1 month
Download report: Final report

Sources:


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