# NTSB SEA94LA211: Cessna 140, N3736V, Dayton, WY, August 14, 1994 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: August 13, 1994, 20:00 local (Aug 14, 1994, 02:00 UTC) - Place: Dayton, WY - Coordinates: 44.870521, -107.250244 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.8705&lon=-107.2502&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: Minor injuries - Injuries: 2 minor - Status: Completed, report June 19, 1995 - Report: Approved by Office Director - NTSB case key (mKey): 41998 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA94LA211 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41998/pdf - Page: https://openairdocs.org/ntsb/SEA94LA211 ## Probable cause THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Gear collapsed, landing - roll - landing gear,main gear attachment - overload - directional control - not maintained, pilot in command (cause) ## Analysis DURING THE LAND ROLL, THE PILOT STATED THAT AS THE GROUND SPEED AND CONTROL EFFECTIVENESS DECREASED, THE AIRPLANE BEGAN TO VEER TO THE LEFT. THE PILOT APPLIED RIGHT RUDDER CONTROL AND BRAKING ACTION; HOWEVER, THE AIRPLANE CONTINUED TO ROTATE TO THE LEFT UNTIL IT GROUND LOOPED. AFTER THE ACCIDENT, THE PILOT NOTED THAT THE RIGHT MAIN LANDING GEAR HAD SEPARATED FROM THE FUSELAGE AT ITS ATTACH POINT. INSPECTION OF THE ATTACHMENT BOLT REVEALED EVIDENCE OF AN OVERLOAD SEPARATION. ## Factual narrative On August 13, 1994, approximately 2000 hours mountain daylight time (MDT), a Cessna 140, N3736V, registered to Sundance Aviation, Inc., and being flown by Dan T. Miller, a private pilot, sustained substantial damage when the right main landing gear collapsed and separated from the aircraft during landing roll at a private airstrip near Dayton, Wyoming. The pilot and passenger received minor injuries. Visual meteorological conditions existed and no flight plan had been filed. The flight, which was personal in nature, was to have been operated in accordance with 14CFR91, and originated from the accident site airstrip approximately 1930 hours. The pilot reported that the landing was a normal three point touch down. During the roll out, as the airplane slowed and control effectiveness decreased, the aircraft began to gradually veer left. The pilot applied right rudder control, however, the airplane continued to the left. The pilot increased the rudder control and applied braking action, however, the airplane continued to gradually rotate to the left. At the beginning of the left turn, the pilot stated that the airplane sank slightly to the right. The airplane continued to rotate to the left until the left wheel lifted off the ground and the airplane ground looped approximately 135 degrees counter clockwise before coming to a stop. After the accident, the pilot noted that the right main landing gear separated from the fuselage at its attach point, and was laying approximately ten feet from where the airplane came to rest. A Federal Aviation Administration Inspector from the Denver, Colorado, Flight Standards District Office inspected the attachment bolt for the right main landing gear and found evidence of an overload separation. The brakes were free from binding and did not reveal evidence of overheating. ## Aircraft - Registration: [N3736V](https://openairdocs.org/deregistered/N3736V-2013-07-01), registration cancelled 2013-07-01, S/N 15013, built 1949 (OpenAirDocs) - Reported make and model: CESSNA 140 - Registry model: [Cessna 140](https://openairdocs.org/model/cessna-140) (registry code 2071602) (OpenAirDocs) - Registry engine: [Continental C90 series](https://openairdocs.org/engine/continental-c90-series) (registry code 17009, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 15013 - Engines: CONTINENTAL C-85-12 85 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Miller, Dan, T. - Registered owner: Sundance Aviation Inc. - Airworthiness certificate: Standard, Normal - Airport: Padlock Ranch, runway 9, 2,000 × 75 ft, grass/turf ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 28; private; airplane ratings: single-engine land; medical: class 1, valid medical--no waivers/lim.; seat: left; flight hours: 195 total, 34 in this make and model, 148 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 210° at 5 knots - Visibility: 30 statute miles - Lowest ceiling: none - Temperature: 77 °F, dew point 54 °F - Altimeter: 30.00 inHg - Observed at: SHR, 13 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 19940813021369A](https://openairdocs.org/incident/19940813021369A), Aug 13, 1994: Cessna 140, Dayton, WY, Substantial damage. Ground looped landing tail wheel 140. Side loading separated right main landing gear. ## Other investigations on N3736V (1) 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. - [NTSB UNK64X0105](https://openairdocs.org/ntsb/UNK64X0105), Jan 1, 1964: Cessna 140 (N3736V), Littleton, CO, substantial damage 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.