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Last updated: 8 December 2021
Statuts:Enquête Officielle
Date:jeudi 10 mai 2001
Type/Sous-type:Silhouette image of generic MD83 model; specific model in this crash may look slightly different
McDonnell Douglas DC-9-83 (MD-83)
Immatriculation: EC-FXI
Numéro de série: 49630/1591
Année de Fabrication: 1989
Heures de vol:42293
Moteurs: 2 Pratt & Whitney JT8D-219
Equipage:victimes: 0 / à bord: 6
Passagers:victimes: 0 / à bord: 45
Total:victimes: 0 / à bord: 51
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Liverpool International Airport (LPL) (   Royaume Uni)
Phase de vol: A l'atterrissage (LDG)
Nature:Charter International
Aéroport de départ:Palma de Mallorca Airport (PMI/LEPA), Espagne
Aéroport de destination:Liverpool International Airport (LPL/EGGP), Royaume Uni
Numéro de vol:JK3203
An automatic landing on runway 27 was carried out with the first officer being the pilot flying. The right main landing gear failed immediately upon touchdown. The aircraft slid along the runway and came to a halt some 1,600 metres further on, resting on its right flaps, slats and wingtip. An emergency evacuation was carried out. Examination of the aircraft showed that the right main gear strut cylinder had fractured below the attachment trunnions, releasing the wheels/axle assembly back into the flaps and wing/fuselage fairing. The lower portion of the failed cylinder remained attached only by the sidestay. A closer inspection revealed the presence of an anomaly on the forward outer surface of the cylinder fracture, which subsequent examination identified as a fatigue crack measuring approximately 3.5 mm long and 1.1 mm deep.

Probable Cause:

1. The right main landing gear cylinder failed immediately upon touchdown due to the application of spin-up drag loads on a section of the cylinder containing a major fatigue crack 3.2 mm long and 1.0 mm deep and several other smaller cracks associated with it.
2. The origins of these fatigue cracks could not be identified but other embryonic cracks were found which were associated with surface irregularities arising from a grit-blasting process during manufacture. Abnormal loading, possibly due to an occurrence of a mode of fore-and-aft vibration known as 'gear walking' is thought to have been responsible, at some time in the aircraft's history, for propagating the cracks to a depth at which continued growth was possible under normal loading. Alternatively, some abnormal loading may have relaxed the beneficial compressive surface stresses induced by shot-peening at the critical section and allowed propagation from the same surface defects.
3. Inspection and other mandatory preventive measures taken following two similar accidents did not prevent the occurrence of this third accident. This was probably due to the small size of cracks which are required to be detected before reaching a critical dimension.

Accident investigation:
Investigating agency: AAIB
Status: Investigation completed
Duration: 2 years and 7 months
Accident number: AAIB AAR 4/03
Download report: Final report

Opérations de secours

AAIB issued 5 Safety Recommendations

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photo of MD-83-EC-FXI
accident date: 10-05-2001
type: McDonnell Douglas MD-83
registration: EC-FXI

Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Palma de Mallorca Airport et Liverpool International Airport est de 1579 km (987 miles).

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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