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ASN Wikibase Occurrence # 225973
Last updated: 24 July 2020
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Date:09-JUN-2019
Time:16:48
Type:Silhouette image of generic NG5 model; specific model in this crash may look slightly different
BRM Aero Bristell NG 5 UL
Owner/operator:private
Registration: CS-USX
C/n / msn: 019/2012
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Leiria Airfield(LPJF), Gāndara dos Olivais, Leiria -   Portugal
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Training
Departure airport:Leiria Airport (LPJF)
Destination airport:Leiria Airport (LPJF)
Investigating agency: GPIAAF Portugal
Narrative:
A BRM Aero Bristell NG 5 UL crashed after a low flyby near Leiria Airfield(LPJF), Gāndara dos Olivais, Leiria.
Both occupants (41/67) died in the crash and the ultralight was destroyed by fire.

Probable causes:
Aircraft loss of control by the pilots when performing an unapproved manoeuvre at low altitude.

Contributing factors:
An exaggerated belief in the aircraft's performance and quality figures, may have boosted the already known overconfidence and invulnerability attitude of the pilot who was demonstrating the aircraft.
The tail wind direction experienced at the last manoeuvre, may have contributed to a decrease in the true air speed.
Operating the aircraft outside its flight envelope, considering the design constrains regarding stability and controllability with significant static margin and limitations on spin recovery and the estimated MTOM.
The engine failure possibility due to the lack of fuel supply by the carburettor system cannot be excluded, thus, reducing the elevator and rudder controls effectiveness.

Sources:

https://sputniknews.com/europe/201906091075760724-light-plane-crash-kills-2-western-portugal/
https://24.sapo.pt/atualidade/artigos/queda-de-aeronave-em-leiria-provoca-duas-vitimas?=/local/viana-do-castelo
https://www.publico.pt/2019/06/09/sociedade/noticia/avioneta-cai-aerodromo-leiria-1875927
https://ionline.sapo.pt/artigo/661389/leiria-queda-de-aeronave-provoca-duas-vitimas?seccao=Portugal
http://www.gpiaa.gov.pt/

https://www.jetphotos.com/photo/7605250 (photo)

Accident investigation:
cover
  
Investigating agency: GPIAAF Portugal
Status: Investigation completed
Duration: 1 year 1 month
Download report: Final report


Images:


Figure: GPIAAF

Revision history:

Date/timeContributorUpdates
09-Jun-2019 19:22 gerard57 Added
09-Jun-2019 20:53 RobertMB Updated [Location, Phase, Source, Narrative]
10-Jun-2019 07:10 JFigueiredo Updated [Source, Narrative]
10-Jun-2019 07:42 TB Updated [Aircraft type, Operator, Location, Source, Narrative, Plane category]
12-Jun-2019 19:49 RobertMB Updated [Aircraft type, Registration, Cn, Location, Phase, Nature, Departure airport, Destination airport, Source, Narrative]

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