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ASN Wikibase Occurrence # 234958
Last updated: 3 July 2020
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.

Date:10-APR-2020
Time:10:40
Type:Silhouette image of generic PISI model; specific model in this crash may look slightly different
Pipistrel Sinus LSA SRL
Owner/operator:Private
Registration: N711MK
C/n / msn: 510 SN 912 LSA
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Great Smoky Mountains National Park west of Clingmans Dome, TN -   United States of America
Phase: En route
Nature:Private
Departure airport:Atlanta-Cobb County-Mc Collum Field, GA (KRYY)
Destination airport:Atlanta-Cobb County-Mc Collum Field, GA (KRYY)
Investigating agency: NTSB
Narrative:
The pilot reported that, while en route, the motor glider began to lose altitude unexpectedly. He turned the motor glider toward an area where lift was expected, but it continued to descend. When the motor glider was about 300 ft above trees, he unfeathered the propeller and started the engine. The motor glider continued to descend due to a downdraft, and the pilot deployed the airframe parachute. Subsequently, the motor glider impacted vegetation, which resulted in substantial damage to both wings and the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the motor glider that would have precluded normal operation.

Probable Cause: The motor glider's encounter with atmospheric lift conditions that were not sufficient to maintain flight, which necessitated a forced landing and resulted in impact with vegetation. Contributing to the accident was the pilot's delayed decision to restart the motor glider's engine.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20200410X12023&key=1
https://www.google.com/maps/place/Clingmans+Dome/@35.5608194,-83.4977441,1529m/data=!3m1!1e3!4m5!3m4!1s0x88594e0302f0a0ab:0x756a068785c2f619!8m2!3d35.5627546!4d-83.4984981!5m1!1e4?hl=en-us

FAA register: https://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=711MK

Accident investigation:
cover
  
Investigating agency: NTSB
Status: Investigation completed
Duration: 2 months
Download report: Final report


Revision history:

Date/timeContributorUpdates
10-Apr-2020 22:13 Geno Added
11-Apr-2020 06:01 harro Updated [Aircraft type, Narrative]
03-Jul-2020 12:37 ASN Update Bot Updated [Time, Operator, Nature, Departure airport, Destination airport, Source, Damage, Narrative, Accident report, ]
03-Jul-2020 13:31 harro Updated [Departure airport, Destination airport, Source, Narrative, Accident report, ]

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