# NTSB SEA06CA023: Diamond Aircraft Industries HK 36 TTC, N543MD, Sandpoint, ID, December 4, 2005 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: December 3, 2005, 16:00 local (Dec 4, 2005, 00:00 UTC) - Place: Sandpoint, ID - Coordinates: 48.371387, -116.383331 - Nearby events: https://openairdocs.org/map.md?lat=48.3714&lon=-116.3833&mi=10 - Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report March 28, 2006 - Report: Approved by Office Director - NTSB case key (mKey): 62913 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA06CA023 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/62913/pdf - Page: https://openairdocs.org/ntsb/SEA06CA023 ## Probable cause Excessive speed for the landing roll and inadequate remedial action for the initial takeoff. An object near the end of the runway and snow covered surface were factors. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - On ground/water collision with object, takeoff - roll/run - object - vehicle (contributing factor) - airspeed - excessive, pilot in command(cfi) (cause) - remedial action - inadequate, pilot in command(cfi) (cause) - terrain condition - snow covered (contributing factor) ## Analysis The pilot stated that he had been practicing short field approaches at the Sandpoint Airport with a flight instructor and then decided to go to his property where he had a private airstrip. The pilot stated that the flight instructor was flying the glider, making a low approach over the airstrip when he unexpectedly decided to land. The airspeed was too high to stop on the remaining runway which was covered with compacted snow. After rolling about 300 feet, the flight instructor applied full throttle for the takeoff. The pilot pointed out the power lines beyond the end of the runway, and the flight instructor stated that they would fly under them. At this time the left wing struck a tractor that was positioned at the end of the airstrip. The wing separated from the airframe and the glider spun around, coming to rest. The pilot stated that there was no mechanical failure or malfunction with the glider at the time of the accident. ## Factual narrative On December 3, 2005, about 1600 Pacific standard time, a Diamond Aircraft Industries HK 36 TTC, N543MD powered glider, registered to and operated by the pilot as a 14 CFR Part 91 instructional flight, collided with a tractor during takeoff from a private airstrip near Sandpoint, Idaho. Visual meteorological conditions prevailed at the time and no flight plan was filed. The glider was substantially damaged and the private pilot owner and flight instructor were not injured. The flight departed from Sandpoint Airport about 30 minutes prior to the accident. During a telephone interview and subsequent written statement, the pilot stated that they had been practicing short field approaches at the Sandpoint Airport, then decided to go to the owner's property where he had a private airstrip. The pilot stated that the flight instructor was flying the glider, making a low approach over the airstrip when he unexpectedly decided to land. The airspeed was too high to stop on the remaining runway which was covered with compacted snow. After rolling about 300 feet, the flight instructor applied full throttle for the takeoff. The pilot pointed out the power lines beyond the end of the runway, and the flight instructor stated that they would fly under them. At this time the left wing struck a tractor that was positioned at the end of the airstrip. The wing separated from the airframe and the glider spun around, coming to rest. The pilot stated that there was no mechanical failure or malfunction with the glider at the time of the accident. ## Aircraft - Registration: [N543MD](https://openairdocs.org/aircraft/N543MD), registered now, S/N 36.721, built 2003 (OpenAirDocs) - Reported make and model: Diamond Aircraft Industries HK 36 TTC - Registry model: [Diamond Aircraft Industries HK 36 TTC](https://openairdocs.org/model/diamond-aircraft-industries-hk-36-ttc) (registry code 05605ML) (OpenAirDocs) - Registry engine: [Rotax SEE BOMBADIER](https://openairdocs.org/engine/rotax-see-bombadier) (registry code 55555, reciprocating) (OpenAirDocs) - Category: Powered-lift - Serial number: 36.721 - Engines: Rotax 914 F3 reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Registered owner: Michael G. Durnin - Airworthiness certificate: Standard, Utility - Departed: SZT, Sandpoint, ID ## Flight crew As NTSB recorded them. NTSB leaves out names. - Flight instructor; age 63; injuries: none; flight instructor, airline transport, commercial; airplane ratings: multi-engine land, single-engine land, multi-engine sea, single-engine sea; instrument ratings: airplane; medical: class 1; flight hours: 11,040 total, 8 in this make and model, 0 in the last 90 days, 0 in the last 30 days - Pilot; injuries: none ## Weather - Conditions: Visual (VMC), Day ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20051203029279A](https://openairdocs.org/incident/20051203029279A), Dec 3, 2005: Diamon HK36TTC, Sandpoint, ID, Substantial damage. (-23) The owner/pilot and a flight instructor were making a low pass over the owners private strip when the flight instructor, who was flying, decided to try a… From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.