# NTSB GAA19CA443: Valldejuli John A Aerocomp, N12ZT, Jefferson City, MO, July 20, 2019 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: July 20, 2019, 10:30 local (15:30 UTC) - Place: Jefferson City, MO - Coordinates: 38.59111, -92.156112 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=38.5911&lon=-92.1561&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report April 13, 2020 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 99902 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA19CA443 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/99902/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=99902 - Page: https://openairdocs.org/ntsb/GAA19CA443 ## Probable cause The pilot's failure to maintain directional control during a touch-and-go landing in gusting crosswind conditions, which resulted in a runway excursion, impact with runway lights, and a nose-over. ## 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: [Valldejuli John A AEROCOMP 7, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=056068O), [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: [Valldejuli John A AEROCOMP 7, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=056068O), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Wind: gusts](https://openairdocs.org/ntsb-findings/03034045): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Valldejuli John A AEROCOMP 7, 1 case](https://openairdocs.org/ntsb-findings/03034045/cases.md?model=056068O), [All aircraft, 1,199 cases](https://openairdocs.org/ntsb-findings/03034045/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Effect on operation (probable cause); cases with it: [Valldejuli John A AEROCOMP 7, 1 case](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=056068O), [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) - [Object/animal/substance: runway/taxi/approach light](https://openairdocs.org/ntsb-findings/03022012): Environmental issues › Physical environment · Effect on operation (probable cause); cases with it: [Valldejuli John A AEROCOMP 7, 1 case](https://openairdocs.org/ntsb-findings/03022012/cases.md?model=056068O), [All aircraft, 106 cases](https://openairdocs.org/ntsb-findings/03022012/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [Valldejuli John A AEROCOMP 7, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=056068O), [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: [Valldejuli John A AEROCOMP 7, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=056068O), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Landing-flare/touchdown: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Valldejuli John A AEROCOMP 7, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=056068O), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md) ## Analysis The pilot reported that, during a touch-and-go landing and shortly after touchdown, the airplane veered left. He added power, and the airplane pitched up, so he "cut the power" and corrected with right aileron, but the airplane landed hard on a grass field next to the runway, struck runway lights, and nosed over. The pilot added that the airplane was trimmed for landing. The airplane sustained substantial damage to the right-wing lift strut and empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The pilot reported that the wind was from 030° at 10 to 15 knots, gusting to 20 knots. ## Factual narrative The pilot of the tailwheel equipped airplane reported that, during a touch and go landing, shortly after touchdown, the airplane veered left. He added power and the airplane pitched up, so "cut the power" and corrected with right aileron, but the airplane landed hard on the grass field next to the runway, struck runway lights and nosed over. The pilot added that the airplane was trimmed for landing. The airplane sustained substantial damage to the right-wing lift strut and 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 station located 14 nautical miles north of the accident airport reported that: about 30 minutes before the accident, the wind was 190° at 12 knots, and about 30 minutes after the accident, the wind was 220° at 11 knots The pilot reported that the wind was 030° at 10 to 15 knots, gusting up to 20 knots. The airplane touched down on runway 12. ## Aircraft - Registration: [N12ZT](https://openairdocs.org/aircraft/N12ZT), registered now, S/N 98-175 (OpenAirDocs) - Reported make and model: VALLDEJULI JOHN A AEROCOMP (7) - Registry model: [Valldejuli John A AEROCOMP 7](https://openairdocs.org/model/valldejuli-john-a-aerocomp-7) (registry code 056068O) (OpenAirDocs) - Category: Airplane - Serial number: 98-175 - Year built: 1999 - Airframe hours: 310 - Engines: Walter 601-D 657 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Comp Air Wings Llc - Registered owner: Comp Air Wings Llc - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, November 15, 2018 - Departed: JEF, Jefferson City, MO - Destination: JEF, Jefferson City, MO - Airport: JEF, Jefferson City Memorial, runway 12, 6,000 × 100 ft, concrete - Equipment: Auto-pilot ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 59; injuries: none; commercial; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review September 16, 2018; seat: left; restraint: 4-point; flight hours: 3,031 total, 35 in this make and model, 3,031 as pilot in command ## Weather - Conditions: Visual (VMC), Day - Wind: 190° at 12 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 86 °F, dew point 73 °F - Altimeter: 29.92 inHg - Observed at: KCOU, 14 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 20190720012229A](https://openairdocs.org/incident/20190720012229A), Jul 20, 2019: Valldejuli John A AEROCOMP 7, Jefferson City, MO, Substantial damage. The pilot lost control of the aircraft after initiating a go around on runway 12 at kjef. The aircraft departed the runway, hit a runway light, and came to… ## Docket (2 files) The files NTSB released with the investigation on January 16, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=99902. 1.2 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40479962&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Accident Photo (item 2, .PDF, 137 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40479963&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.