# NTSB GAA17CA267: Grumman Acft ENG Cor-Schweizer G 164, N6944K, Walnut Ridge, AR, May 8, 2017 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: May 8, 2017, 09:15 local (14:15 UTC) - Place: Walnut Ridge, AR - Coordinates: 36.145832, -90.836112 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=36.1458&lon=-90.8361&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report November 14, 2017 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 95131 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA17CA267 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/95131/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=95131 - Page: https://openairdocs.org/ntsb/GAA17CA267 ## Probable cause The pilot’s failure to maintain directional control during the go-around with a tailwind. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Grumman Acft ENG Cor-Schweizer G-164B, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=3952802), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Grumman Acft ENG Cor-Schweizer G-164B, 11 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=3952802), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Runway/land/takeoff/taxi surface: soft surface](https://openairdocs.org/ntsb-findings/03023020): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Grumman Acft ENG Cor-Schweizer G-164B, 2 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md?model=3952802), [All aircraft, 264 cases](https://openairdocs.org/ntsb-findings/03023020/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-landing roll: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Grumman Acft ENG Cor-Schweizer G-164B, 6 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=3952802), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) ## Analysis The pilot of a tailwheel-equipped airplane reported that, during a go-around, the airplane veered to the left off the runway. He added that the main landing gear went into the mud, and the airplane nosed over. The airplane sustained substantial damage to the empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation system about 4 nautical miles from the accident site reported that, about the time of the accident, the wind was from 200° at 6 knots. The Federal Aviation Administration inspector reported that the pilot landed to the north. ## Factual narrative The pilot of a tailwheel-equipped airplane reported that, during a go-around, the airplane veered to the left off the runway. He added that, the main landing gear went into the mud and the airplane nosed over. The airplane sustained substantial damage to the empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The automated weather observation system about 4 nautical miles from the accident site reported that, about the time of the accident, the wind was from 200° at 6 knots. The Federal Aviation Administration Inspector reported that the pilot landed to the north. ## Aircraft - Registration: [N6944K](https://openairdocs.org/deregistered/N6944K-2023-09-11), registration cancelled 2023-09-11, S/N 526B, built 1979 (OpenAirDocs) - Reported make and model: GRUMMAN ACFT ENG COR-SCHWEIZER G 164 (B) - Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs) - Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 526B - Year built: 1979 - Engines: turbo prop - Damage: Substantial damage - Flight: Aerial application, Part 137 - Operator: Wilson Flying Service Inc. - Registered owner: Wilson Flying Service Inc. - Airworthiness certificate: Special, Restricted (Special) - Departed: N/A, Walnut Ridge, AR - Destination: N/A, Walnut Ridge, AR - Airport: N/A, Private - Equipment: Unknown ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 37; injuries: none; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review October 6, 2016; seat: single; restraint: 4-point ## Weather - Conditions: Visual (VMC), Day - Wind: 200° at 6 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 72 °F, dew point 54 °F - Altimeter: 30.10 inHg - Observed at: KARG, 4 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 20170508004099A](https://openairdocs.org/incident/20170508004099A), May 8, 2017: Grumman Acft Eng Cor-Schweizer G-164B, Walnut Ridge, AR, Substantial damage. On may 8, 2017 at approximately 09:15 central time, a Grumman G-164B, registered as N6944K to wilson flying service inc, landed to the north on a private… ## Other investigations on N6944K (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 FTW79DPG83](https://openairdocs.org/ntsb/FTW79DPG83), Sep 11, 1979: Grumman G-164B (N6944K), Marion, AR, destroyed ## Docket (2 files) The files NTSB released with the investigation on October 16, 2017, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=95131. 4.3 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 3.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40457053&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Accident Photo (item 2, .PDF, 552 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40457054&FileExtension=.PDF&FileName=Accident%20Photo-Master.PDF 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.