ASN Wikibase Occurrence # 267540
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| Date: | Friday 30 July 2021 |
| Time: | 11:25 LT |
| Type: |  Diamond DA40 Diamond Star |
| Owner/operator: | Motorfluggruppe Chur |
| Registration: | HB-SDF |
| MSN: | 40.371 |
| Year of manufacture: | 2004 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Bad Ragaz (LSZE) -
 Switzerland
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Muenster Aero Airfield (LSPU) |
| Bad Ragaz Airfield (LSZE) | |
| Investigating agency: | STSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The nose gear collapsed on landing.
The shock absorber of the nose landing gear showed increasing pre-damage during operation, which was bound to lead to its failure sooner or later. During this landing, the damaged shock absorber was subjected to an extraordinary load and failed.
The pre-damage was caused by the incorrect installation of a guide disc with a flange. It remains unclear when this occurred. Whether this pre-damage would have been recognisable during the 3000 h inspection also remains open.
Accident investigation:
 |
|
Sources:
https://www.sust.admin.ch/inhalte/AV-berichte/HB-SDF_VB.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Sep-2021 09:46 | harro | Added |
| 01-Dec-2023 13:25 | harro | Updated [Other fatalities, Narrative, Accident report] |
Corrections or additions? ... Edit this accident description
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