ASN logo
ASN Wikibase Occurrence # 195817
Last updated: 1 December 2019
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information. If you feel this information is incomplete or incorrect, you can submit corrected information.

Type:Silhouette image of generic DR40 model; specific model in this crash may look slightly different
Robin DR.400-180R Remorqueur
Owner/operator:Segelfluggruppe Glarnerland
Registration: HB-EZX
C/n / msn: 1349
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Near Mollis Airfield - LSMF -   Switzerland
Phase: Take off
Departure airport:Mollis Airport (LSMF)
Destination airport:Mollis Airport (LSMF)
Investigating agency: STSB Switzerland
The aircraft took off at 16:44 with a Schleicher ASW 19B (HB-1714) glider in tow. The flight attitude of the glider after take-off was unsteady. It climbed above the altitude of the tow plane and the glider pilot attempted to release his glider to abort the takeoff.
The tow plane then lost control and impacted the ground.

The accident in which the towing aircraft suffered a loss of control and crashed shortly after take-off was due to the fact that the altitude of the towed glider was too high, causing the tail of the tow plane to be pulled up.
The climb of the towed glider was caused by the combination of the following factors:
- The insufficient steering of the glider pilot;
- The inappropriate training to improve this control;
- The incorrect manipulation of the glider pilot when releasing;
- The limited situational awareness of the glider pilot.


Accident investigation:
Investigating agency: STSB Switzerland
Status: Investigation completed
Duration: 1 year and 10 months
Download report: Final report

Revision history:

31-May-2017 10:06 FLYINGBROTHER1 Added
11-Apr-2019 18:52 harro Updated [Time, Phase, Departure airport, Destination airport, Narrative, Accident report, ]

Corrections or additions? ... Edit this accident description