Accident Grob G103 Twin Astir 9A-GTW, Sunday 27 August 2017
ASN logo
 

Date:Sunday 27 August 2017
Time:15:48
Type:Silhouette image of generic gr13 model; specific model in this crash may look slightly different    
Grob G103 Twin Astir
Owner/operator:Aeroklub Split
Registration: 9A-GTW
MSN: 3170
Fatalities:Fatalities: 1 / Occupants: 2
Other fatalities:0
Aircraft damage: Destroyed
Category:Accident
Location:Sinj -   Croatia
Phase: En route
Nature:Training
Departure airport:Sinj Airport (LDSS)
Destination airport:
Investigating agency: AIN Croatia
Confidence Rating: Accident investigation report completed and information captured
Narrative:
Glider crashed on the mountain Kamenšnica.
The student, minor, died. Instructor was injured (Broken leg).

CAUSE
Immediate cause
The immediate cause of the accident in question is a sudden and uncontrolled loss of height.
The aforementioned loss of the glider's height was most likely due to a strong wind blow from behind, which caused a drop in the relative speed of the glider and a loss of functionality of the control surfaces.
Contributing factors
The factors that led to the immediate cause of this accident are:
- The meteorological situation in which there is a "spillover" of the wind from one side of the ridge to the other,

Accident investigation:
cover
  
Investigating agency: AIN Croatia
Report number: 
Status: Investigation completed
Duration:
Download report: Final report

Sources:

https://www.slobodnadalmacija.hr/novosti/crna-kronika/clanak/id/503912/tragedija-na-kamesnici-srusila-se-letjelica-jedna-osoba-smrtno-stradala
http://www.ain.hr/Investigations/Download/247

Revision history:

Date/timeContributorUpdates
27-Aug-2017 19:37 Vojko Added
27-Aug-2017 19:38 harro Updated [Aircraft type, ]
28-Aug-2017 15:40 Iceman 29 Updated [Narrative, ]
07-Sep-2017 10:34 Anon. Updated [Time, ]
10-May-2020 16:59 KagurazakaHanayo Updated [Time, Aircraft type, Registration, Cn, Other fatalities, Source, Narrative, ]

Corrections or additions? ... Edit this accident description

The Aviation Safety Network is an exclusive service provided by:
Quick Links:

CONNECT WITH US: FSF on social media FSF Facebook FSF Twitter FSF Youtube FSF LinkedIn FSF Instagram

©2025 Flight Safety Foundation

1920 Ballenger Av, 4th Fl.
Alexandria, Virginia 22314
www.FlightSafety.org