Date:	Saturday 4 August 2018
Time:	09:50 LT
Type:	Socata TB10 Tobago
Owner/operator:	Motorfluggruppe Pilatus
Registration:	HB-EZW
MSN:	351
Year of manufacture:	1983
Engine model:	Lycoming O-360-A1AD
Fatalities:	Fatalities: 4 / Occupants: 4
Other fatalities:	0
Aircraft damage:	Destroyed
Category:	Accident
Location:	1 km SW of Hergiswil, Nidwalden -   Switzerland
Phase:	En route
Nature:	Private
Departure airport:	Kagiswil Airport (LSPG)
Destination airport:	Basel/Mulhouse/Freiburg EuroAirport (BSL/LFSB)
Investigating agency:	STSB
Confidence Rating:	Accident investigation report completed and information captured

Narrative:
The aircraft crashed into a tree covered mountain ridge in Hergiswil and burst into flames. All occupants were killed. The airtrcaft was operated by the Pilatus aircraft group, which was controlled almost exclusively by employees of the Pilatus aircraft factory.
The deceased pilot was the chiefpilot of the Pilatus Aircraft Ltd.

Causes:
The accident in which a collision with obstacles occurred is due to the fact that the pilot approached a ridge too low at low speed in a climb and at an obtuse angle, which is a risky flight tactic.
A lack of training on the accident model [TB-10] contributed to the accident.

https://www.sust.admin.ch/inhalte/AV-berichte/HB-EZW.pdf
https://www.arcinfo.ch/articles/suisse/nidwald-un-aeronef-se-crashe-et-provoque-un-incendie-774762
https://www.suedostschweiz.ch/ereignisse/2018-08-04/absturz-von-kleinflugzeug-in-hergiswil-nw-fuehrt-zu-brand-im-umland
http://www.20min.ch/schweiz/zentralschweiz/story/Flugzeug-stuerzt-am-Lopper-NW-ab-12041924
http://www.20min.ch/schweiz/zentralschweiz/story/Flugzeug-stuerzt-am-Lopper-NW-ab-12041924
https://www.radiopilatus.ch/artikel/151972/

https://bazonline.ch/panorama/vermischtes/Chefpilot-der-Pilatus-flog-abgestuerztes-Flugzeug-/story/24159154
https://www.luzernerzeitung.ch/zentralschweiz/nidwalden/schwenk-ueber-pilatus-chefpilot-sein-tod-tut-weh-ld.1043030
_________________________
https://www.jetphotos.com/photo/8623270

Date/time	Contributor	Updates
04-Aug-2018 09:56	gerard57	Added
04-Aug-2018 10:06	gerard57	Updated [Time, ]
04-Aug-2018 12:43	Anon.	Updated [Aircraft type, Registration, Source, ]
04-Aug-2018 12:45	harro	Updated [Aircraft type, Cn, ]
04-Aug-2018 14:19	Geno	Updated [Source, ]
04-Aug-2018 18:44	Captain Adam	Updated [Total fatalities, Total occupants, Other fatalities, Source, Narrative, ]
05-Aug-2018 11:57	Iceman 29	Updated [Time, Source, Embed code, Narrative, ]
05-Aug-2018 12:32	Iceman 29	Updated [Operator, Departure airport, Narrative, ]
25-Aug-2018 10:09	Anon.	Updated [Source, ]
12-Sep-2018 08:06	Medevac	Updated [Source, Narrative, ]
04-Feb-2020 18:57	harro	Updated [Time, Location, Departure airport, Destination airport, Narrative, Accident report, ]