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| Date: | Thursday 1 February 2024 |
| Time: | 13:35 |
| Type: |  3I Sky Arrow 650 |
| Owner/operator: | Wageningen University & Research |
| Registration: | PH-WUR |
| MSN: | CNS024 |
| Year of manufacture: | 2002 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Other fatalities: | 0 |
| Aircraft damage: | Minor |
| Category: | Accident |
| Location: | near Goudriaan -
 Netherlands
|
| Phase: | En route |
| Nature: | Survey |
| Departure airport: | Hilversum Airfield (EHHV) |
| Hilversum Airfield (EHHV) | |
| Investigating agency: | Dutch Safety Board |
| Confidence Rating: |  Accident investigation report completed and information captured |
The Sky Arrow 650, operated by the Wageningen University, force landed in a field after the canopy separated from the aircraft in mid air.
The aircraft is used as an airborne platform for monitoring greenhouse gas emissions.
Near Goudriaan, the pilot started a descent to 200 feet while making a right turn to start the first measurement. During the descent, the canopy separated from the aeroplane. The pilot decided to return to the airport. The pilot then noticed that there were abnormal engine indications, whereupon he declared an urgency call (PAN PAN) followed by a precautionary landing in a meadow. During the occurrence, the pilot received a minor injury.
Conclusion
The Safety Board finds that the locking mechanism was in good order and that the canopy opened up because it was not locked or not fully locked. The Safety Board also notes that there is no warning system or other technical safety mechanism in this type of aircraft. Adhering to the checklist (‘Canopy CLOSE AND LOCK’) is therefore the sole means of
preventing the canopy from not being locked or not fully locked.
Sources:
https://www.rijnmond.nl/nieuws/1771314/sportvliegtuigje-maakt-noodlanding-nadat-dak-van-cockpit-afvliegt
https://globe.adsbexchange.com/?icao=484ab5&lat=51.924&lon=4.903&zoom=10.2&showTrace=2024-02-01&trackLabels
https://www.wur.nl/upload_mm/1/d/8/180a1cbf-fd30-486e-a0f9-9271bd027f7c_Airbornfacilityformonitoringgreenhousegasemissions.pdf
https://onderzoeksraad.nl/wp-content/uploads/2024/11/Quaterly-Aviaton-Report-Q3-2024.pdf
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Feb-2024 17:05 | harro | Added |
| 01-Feb-2024 17:06 | harro | Updated [Aircraft type, Other fatalities, Nature, Narrative, ] |
| 30-May-2024 11:47 | ASN | Updated [Narrative, ] |
| 10-Dec-2024 15:13 | ASN | Updated [Source, Narrative, ] |
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