# NTSB FTW98LA254: Cessna 172A, N9863T, Ten Sleep, WY, May 24, 1998 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: May 24, 1998, 17:55 local (23:55 UTC) - Place: Ten Sleep, WY - Coordinates: 44.030673, -107.440093 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.0307&lon=-107.4401&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report February 15, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 20637 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW98LA254 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/20637/pdf - Page: https://openairdocs.org/ntsb/FTW98LA254 ## Probable cause The student pilot's failure to select a proper touchdown point. A factor was his lack of recent experience conducting solo flight operations. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Overrun, landing - roll - proper touchdown point - not maintained, pilot in command (cause) - lack of recent experience, pilot in command (contributing factor) - On ground/water collision with object, landing - roll - object - building(nonresidential) - object - vehicle ## Analysis The pilot was landing on a 900 foot landing strip located on his private ranch and overshot the runway. The aircraft collided with a new hangar under construction, then impacted a tractor, destroying the aircraft. According to the pilot's logbook, the last dual instruction flight and instructor solo signoff the student received was on September 26, 1996, 20 months prior the accident. ## Factual narrative On May 24, 1998, at 1755 mountain daylight time, a Cessna 172A, N9863T, was destroyed when it collided with objects during landing roll near Ten Sleep, Wyoming. The student pilot, the sole occupant aboard, was not injured. The aircraft was being operated by the owner under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the cross-country personal flight which originated approximately 30 minutes before the accident. No flight plan had been filed. According to the pilot, he was landing on a 900 foot landing strip located on his private ranch and overshot the runway. The aircraft collided with a new hangar under construction, then impacted a tractor. The left wing was destroyed, the right wing was bent, the lower cowling was destroyed, the engine mount was broken, the propeller was bent, and the nose gear was sheared. According to the pilot's logbook, the last dual instructional flight and instructor solo endorsement he received was on September 26, 1996, 20 months prior the accident. According to FAR 61.87 (l) (2), "a student pilot may not operate an aircraft in solo flight unless that student pilot has received an endorsement in the student's logbook for the specific make and model aircraft to be flown by an authorized instructor, who gave the training within the 90 days preceding the date of the flight." ## Aircraft - Registration: [N9863T](https://openairdocs.org/aircraft/N9863T), registered now, S/N 47663, built 1960 (OpenAirDocs) - Reported make and model: Cessna 172A - Registry model: [Cessna 172A](https://openairdocs.org/model/cessna-172a) (registry code 2072404) (OpenAirDocs) - Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 47663 - Engines: Continental O-300-C 145 horsepower reciprocating - Damage: Destroyed - Flight: Instructional, Part 91 - Registered owner: Paul R. Lyman - Airworthiness certificate: Standard, Normal - Last inspection: Annual, September 17, 1997, 2 hours before - Departed: WRL, WORLAND, WY - Destination: NONE, TEN SLEEP, WY - Airport: NONE, Lyman Ranch, runway 36, 900 × 100 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 65; student; medical: unknown, unknown; seat: left; flight hours: 66 total, 1 in the last 90 days, 1 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 130° at 7 knots - Visibility: 60 statute miles - Lowest ceiling: 25,000 ft broken - Temperature: 73 °F, dew point 39 °F - Altimeter: 29.00 inHg - Observed at: WRL, 24 nm away ## 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 19980524011839A](https://openairdocs.org/incident/19980524011839A), May 24, 1998: Cessna 172A, Tensleep, WY, Destroyed. Acft overshot the rwy on landing and crashed, other circumstances are unknown, sleep, WY. (.4)the pilot was landing on a 900 foot landing strip located on his… 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.