ASN Wikibase Occurrence # 315360
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| Date: | Friday 6 May 2022 |
| Time: | 12:25 |
| Type: | Avy Area 1.5 |
| Owner/operator: | CAELUS Consortium |
| Registration: | unreg. |
| MSN: | 007 |
| Fatalities: | Fatalities: 0 / Occupants: 0 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Arran War Memorial Hospital, Lamlash, Isle of Arran -
 United Kingdom
|
| Phase: | En route |
| Nature: | Demo/Airshow/Display |
| Departure airport: | Arran War Memorial Hospital, Lamlash, Isle of Arran |
| Arran War Memorial Hospital, Lamlash, Isle of Arran | |
| Investigating agency: | AAIB |
| Confidence Rating: |  Accident investigation report completed and information captured |
AAIB investigation to Avy Aera 1.5, (UAS registration n/a): Lift propeller bolt failure and blade loss, Arran War Memorial Hospital, Lamlash, Isle of Arran, 6 May 2022.
The UA was hovering during a demonstration flight and was being flown in various manual modes. After about three minutes in the hover, at between 50 m to 65 m agl, a rhythmic lower than normal sound was heard emanating from the UA. A few seconds later it dipped to the left and slowly spiralled downwards. Despite attempts to regain control and fly the UA back to the launch site, the UA was unresponsive and eventually hit the ground A fatigue failure of a blade attachment bolt caused one of the lift propeller blades to detach in flight.
=Safety actions=
As a result of this accident the following safety actions have been taken:
The manufacturer has introduced a 10-hour replacement schedule for the propellers and immediate propeller replacement if a Quadchute event occurs.
The manufacturer is carrying out a review of propeller designs for UAs under its development
Accident investigation:
 |
|
Sources:
1. AAIB Final Report: https://www.gov.uk/aaib-reports/aaib-investigation-to-avy-aera-1-dot-5-uas-registration-n-slash-a
2. https://www.heraldscotland.com/news/23197419.probe-medical-drone-plummets-50m-sky-near-scots-hospital/
3. https://www.nhsaaa.net/news/latest-news/ags-airports-and-nhs-scotland-land-10m-funding-from-innovate-uk-for-medical-drone-project/
Media:
NHSA&A are part of the innovative CAELUS project, looking at the ways in which drone technology can be used to deliver the UK’s first medical distribution network.
— NHS Ayrshire & Arran (@NHSaaa) July 21, 2022
Read more here - https://t.co/H2yZ8jYjtY#FutureFlight#Phase3Project pic.twitter.com/30Tm9Fs8Qo
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 16-Jun-2023 19:33 | Dr. John Smith | Added |
| 16-Jun-2023 19:34 | harro | Updated |
Corrections or additions? ... Edit this accident description
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