# NTSB FTW00LA185: Piper PA-28-161, N8427K, Mckinney, TX, June 24, 2000 - Type: NTSB accident investigation - Classification: Accident · No injuries · Limited investigation · Final report - Date: June 24, 2000, 11:30 local (16:30 UTC) - Place: Mckinney, TX - Coordinates: 33.179264, -96.589149 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.1793&lon=-96.5891&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report July 17, 2001 - Report: Approved by Office Director - NTSB case key (mKey): 49521 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW00LA185 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/49521/pdf - Page: https://openairdocs.org/ntsb/FTW00LA185 ## Probable cause The flight instructor's inadequate supervision of the landing resulting in the loss of directional control by the student pilot. ## Sequence of events In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf). - Loss of control - on ground/water, landing - roll - directional control - not maintained, dual student (cause) - supervision - inadequate, pilot in command(cfi) (cause) - On ground/water encounter with terrain/water, landing - roll - terrain condition - ground ## Analysis During landing roll, approximately 45 knots, the airplane veered left. The flight instructor took the controls and applied right rudder; however, the airplane continued to the left and exited the runway. The left main landing gear collapsed, the left wing struck the ground, and the airplane came to rest. The lower end of the left main landing gear strut housing/cylinder was found separated. The manufacturer representative reported that the separation area was 'symmetrical with no evidence of corrosion or pre existing damage noted.' Inside of the cylinder there were 'impact marks around the forward side of the cylinder in the area where the top of the inner strut tube would normally be when it's near the extended position.' The 'damage was consistent with landing gear impacting a solid object at a time when there was little or no weight on the landing gear and the strut was near full extension.' The attachment bolts 'appeared to have separated cleanly from excessive shear force.' ## Factual narrative On June 24, 2000, at 1130 central daylight time, a Piper PA-28-161 single-engine airplane, N8427K, collapsed the left main landing gear during the landing at the McKinney Municipal Airport, near McKinney, Texas. The airplane was owned by Victor Players, Inc. and operated by Classic Aviation of Addison, Texas. The flight instructor and the student pilot were not injured, and the airplane sustained substantial damage. Visual meteorological conditions prevailed for the cross-country instructional flight under 14 Code of Federal Regulations Part 91, and a flight plan was not filed. The flight departed the Addison Airport, Addison, Texas, at 1030. The flight instructor reported that the student pilot initiated the landing on runway 17, and during the landing roll approximately 45 knots, the airplane veered left. The flight instructor took the airplane controls and applied right rudder; however, the airplane continued to the left and exited the runway. The left main landing gear collapsed, the left wing struck the ground, and the airplane came to rest. Examination of the airplane, by the FAA inspectors and the operator, revealed that the top attachment bolts for the left main landing gear had sheared. The operator reported that the airplane had accumulated 11,500 hours of total flight time during its utilization at the flight school. The operator reported structural damage on the left wing and a "stress crease on the left horizontal stabilizer." On June 30, 2000, under the supervision of the FAA inspector, the left main landing gear strut assembly was examined at Air Salvage of Dallas, Lancaster, Texas, by the manufacturer's representative. The lower end of the strut housing/cylinder (P/N 65319-04) was found separated. The separation area was "symmetrical with no evidence of corrosion or pre existing damage noted." Examination of the inside of the cylinder found "impact marks around the forward side of the cylinder in the area where the top of the inner strut tube would normally be when it's near the extended position." The "damage was consistent with landing gear impacting a solid object (edge of runway, hole, etc.) at a time when there was little or no weight on the landing gear and the strut was near full extension." The attachment bolts "appeared to have separated cleanly from excessive shear force and did not appear to be a factor in the occurrence." ## Aircraft - Registration: [N8427K](https://openairdocs.org/aircraft/N8427K), registered now, S/N 28-8116299, built 1981 (OpenAirDocs) - Reported make and model: Piper PA-28-161 - Registry model: [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161) (registry code 7102803) (OpenAirDocs) - Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 28-8116299 - Airframe hours: 11500 - Engines: Lycoming O-320-D36 reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Classic Aviation - Registered owner: Victor Players, Inc. - Airworthiness certificate: Standard, Normal - Last inspection: 100 hour, May 1, 2000, 65 hours before - Departed: ADS, ADDISON, TX - Destination: TKI - Airport: TKI, Mckinney Municipal, runway 17, 7,001 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 28; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: right; flight hours: 1,355 total, 362 in this make and model, 1,270 as pilot in command, 141 in the last 90 days, 53 in the last 30 days, 3 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 14 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F - Altimeter: 29.00 inHg ## 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 20000624009859A](https://openairdocs.org/incident/20000624009859A), Jun 24, 2000: Piper PA28161, Mc Kinney, TX, No damage. (-23) On June 24, 2000, at 1100 CDT, N8427K landed at the mckinney airport, mckinney, Texas. Shortly after touchdown the a/c began a sharp turn and exited the… 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.