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ASN Wikibase Occurrence # 176727
Last updated: 26 November 2021
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Date:07-JUN-2015
Time:12:00 LT
Type:Rubik R-26SU Góbé 82
Owner/operator:Aero Club Esztergom
Registration: HA-5514
MSN: A800030
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Esztergom Airport -   Hungary
Phase: En route
Nature:Private
Departure airport:Esztergom Airport
Destination airport:Esztergom Airport
Investigating agency: TSB Hungary
Narrative:
Two Rubik R-26 Góbé gliders collided mid-air, resulting in a crash of one glider. Both occupants in the glider died in the crash.
The other glider (HA-5501) managed to land but sustained substantial damage.

Causes
The IC concluded during the investigation that the causes of the occurrence were as follows:
- The crew of Aircraft 1 either did not see Aircraft 2 or if they saw it, they failed to perform an avoidance manoeuvre in time.
- The pilot of Aircraft 2 had not seen Aircraft 1 for a long time until the collision.
In addition to the above, the IC presumes the following probable causes:
- The colour combination of the two aircraft was a contributing factor in the given meteorological and light conditions. The painting of both sailplanes included a colour combination dominated by several shades of blue and the silver colour, so both sailplanes could have blended into the blue sky as background.
- The behavioural and physiological factors originating in the age of the Flight Instructor might also have been contributing factors.

Sources:

http://www.xinhuanet.com/english/2015-06/08/c_134305139.htm
https://index.hu/belfold/2015/06/07/osszeutkozott_ket_vitorlazo_repulogep_esztergomban/
http://www.kbsz.hu/j25/dokumentumok/2015-157-4%20FR.pdf

Accident investigation:
cover
  
Investigating agency: TSB Hungary
Status: Investigation completed
Duration:
Download report: Final report


Revision history:

Date/timeContributorUpdates
08-Jun-2015 08:07 gerard57 Added
08-Jun-2015 08:08 harro Updated [Aircraft type, Source, Narrative]
08-Jun-2015 18:08 Vaclav Kudela Updated [Registration, Cn]
09-Jun-2015 09:37 Alpine Flight Updated [Aircraft type, Registration, Cn]
25-May-2020 08:08 KagurazakaHanayo Updated [Time, Source, Narrative]
25-May-2020 08:10 harro Updated [Narrative, Accident report, ]

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