# NTSB ERA13CA422: Universal Stinson 108 1, N8384K, Lawrenceville, GA, September 19, 2013 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: September 19, 2013, 16:45 local (20:45 UTC) - Place: Lawrenceville, GA - Coordinates: 33.978054, -83.961944 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.9781&lon=-83.9619&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: 4 uninjured - Status: Completed, report November 19, 2013 - Report: Approved by Office Director - NTSB office: Eastern Region Aviation - NTSB case key (mKey): 88093 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ERA13CA422 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/88093/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=88093 - Page: https://openairdocs.org/ntsb/ERA13CA422 ## Probable cause The pilot's failure to maintain directional control during the landing, resulting in a ground loop, runway excursion, and structural damage to the right wing. ## 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: [Universal Stinson 108-1, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=9230414), [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: [Universal Stinson 108-1, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=9230414), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/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: [Universal Stinson 108-1, 2 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=9230414), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Universal Stinson 108-1, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=9230414), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Universal Stinson 108-1, 2 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=9230414), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis According to the pilot, he was completing a local sightseeing flight with friends. The weather was "clear and calm." He was cleared for a three-mile straight in approach to runway 7. Following a normal, stabilized approach, a "small bounce" occurred after the initial touchdown. The airplane deviated to the right and he corrected back to the left. The airplane then ground looped and came to rest upright in the grass, adjacent to the runway. An inspector from the Federal Aviation Administration examined the airplane and confirmed substantial damage to the right wing. The pilot reported no pre-impact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Factual narrative According to the pilot, he was completing a local sightseeing flight with friends. The weather was "clear and calm." He was cleared for a three-mile straight in approach to runway 7. Following a normal, stabilized approach, a "small bounce" occurred after the initial touchdown. The airplane deviated to the right and he corrected back to the left. The airplane then ground looped and came to rest upright in the grass, adjacent to the runway. An inspector from the Federal Aviation Administration examined the airplane and confirmed substantial damage to the right wing. The pilot reported no pre-impact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N8384K](https://openairdocs.org/deregistered/N8384K-2014-03-06), registration cancelled 2014-03-06, S/N 108-1384, built 1946 (OpenAirDocs) - Reported make and model: UNIVERSAL STINSON 108 1 (3) - Registry model: [Universal Stinson 108-1](https://openairdocs.org/model/universal-stinson-108-1) (registry code 9230414) (OpenAirDocs) - Registry engine: [Franklin 6A4150 series](https://openairdocs.org/engine/franklin-6a4150-series) (registry code 27024, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 108-1384 - Year built: 1946 - Airframe hours: 2557 - Engines: FRANKLIN 6A4150 SERIES 150 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Bates Barry A - Registered owner: Bates Barry A - Airworthiness certificate: Standard, Normal - Last inspection: Annual, September 1, 2012, 13 hours before - Departed: LZU, LAWRENCEVILLE, GA - Destination: LZU, LAWRENCEVILLE, GA - Airport: LZU, Gwinnett County - Briscoe Fiel, runway 07, 6,000 × 100 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; injuries: none; flight instructor, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review June 9, 2012; seat: left; flight hours: 1,308 total, 442 in this make and model, 4 in the last 90 days, 2 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 84 °F, dew point 57 °F - Altimeter: 30.10 inHg - Observed at: LZU ## 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 20130919020149A](https://openairdocs.org/incident/20130919020149A), Sep 19, 2013: Universal Stinson 108-1, Lawrenceville, GA, Substantial damage. Pilot was flying PT91. After approximately 1 hour flight. Pilot was attempting to land the aircraft. Pilot stated that he felt the tail settle during initial… ## Other investigations on N8384K (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 ATL07CA059](https://openairdocs.org/ntsb/ATL07CA059), Mar 25, 2007: Stinson 108 (N8384K), Lawrenceville, GA, substantial damage. Probable cause: The pilot's failure to maintain directional control on landing roll out resulting in a ground loop. ## Docket (5 files) The files NTSB released with the investigation on November 13, 2013, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=88093. 6.6 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 959 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40402099&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - FAA Inspector Statement (item 2, .PDF, 107 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40402100&FileExtension=.PDF&FileName=FAA%20Inspector%20Statement-Master.PDF - Weather Information (item 3, .PDF, 52 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40402103&FileExtension=.PDF&FileName=Weather%20Information-Master.PDF - Photo 1: View of Left Side of Wreckage (FAA Digital Photo) (item 4, .PDF, 2.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40402105&FileExtension=.PDF&FileName=Photo%201%3A%20View%20of%20Left%20Side%20of%20Wreckage%20(FAA%20Digital%20Photo)-Master.PDF - Photo 2: View of Wreckage Showing Damage to Right Wing (FAA Digital Photo) (item 5, .PDF, 2.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40402106&FileExtension=.PDF&FileName=Photo%202%3A%20View%20of%20Wreckage%20Showing%20Damage%20to%20Right%20Wing%20(FAA%20Digital%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.