ASN Wikibase Occurrence # 274520
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| Date: | Monday 10 January 2022 |
| Time: | 11:30 |
| Type: |  CSA PS-28 Cruiser |
| Owner/operator: | Flyschool |
| Registration: | EC-NKP |
| MSN: | C0661 |
| Year of manufacture: | 2020 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Casarrubios del Monte Airfield (LEMT) -
 Spain
|
| Phase: | Take off |
| Nature: | Training |
| Departure airport: | Toledo-Casarrubios Del Monte Airport (LEMT) |
| Madrid-Cuatro Vientos Airport (ECV/LECU) | |
| Investigating agency: | CIAIAC |
| Confidence Rating: |  Accident investigation report completed and information captured |
The aircraft took off from Casarrubios del Monte on an instructional flight to Cuatro Vientos Airport in Madrid.
At around 11:30 local time, the aircraft began the takeoff run from runway 26, with flaps in takeoff configuration and maximum power. According to the statements of the instructor and the student, immediately after starting the takeoff run, the wheel of the right main gear leg came off and rolled forward. The crew stopped the aircraft immediately and reported the event to the airfield to stop operations.
Causes/contributing factors
The accident suffered by the EC-NKP aircraft was caused by the deterioration, due to loss of torque, of the threaded joint between the wheel hub and inner and outer wheel rims after three tyre change operations (procedure 8.5.1 Tire Change in the Maintenance Manual). The degradation of the assembly generated fatigue in two of the three bolts, which eventually fractured, causing the right main landing gear wheel to detach.
A failure to explicitly state that the self-locking nuts can not be reused in the maintenance instructions for the assembly and disassembly of this threaded joint provided in procedure 8.5.1 Tire Change of the Maintenance Manual is considered to be a contributing factor.
Accident investigation:
 |
|
Sources:
https://www.mitma.es/organos-colegiados/ciaiac/investigacion/2022/a-003-2022
https://cdn.jetphotos.com/full/6/57991_1601386337.jpg (photo)
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Jan-2022 13:23 | harro | Added |
| 22-Jan-2022 20:47 | RobertMB | Updated [Cn, Other fatalities, Location, Departure airport, Source] |
Corrections or additions? ... Edit this accident description
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