# NTSB GAA19CA493: North American AT 6D, N6432D, Chino, CA, August 10, 2019 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: August 10, 2019, 12:54 local (19:54 UTC) - Place: Chino, CA - Coordinates: 33.974723, -117.63639 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=33.9747&lon=-117.6364&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report April 13, 2020 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 100061 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA19CA493 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/100061/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=100061 - Page: https://openairdocs.org/ntsb/GAA19CA493 ## Probable cause The pilot's improper landing flare, which resulted in a bounced landing, and his subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: landing flare](https://openairdocs.org/ntsb-findings/01062041): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [North American AT-6D, 1 case](https://openairdocs.org/ntsb-findings/01062041/cases.md?model=6400416), [All aircraft, 1,285 cases](https://openairdocs.org/ntsb-findings/01062041/cases.md) - [Performance/control parameters: angle of attack](https://openairdocs.org/ntsb-findings/01062042): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [North American AT-6D, 2 cases](https://openairdocs.org/ntsb-findings/01062042/cases.md?model=6400416), [All aircraft, 990 cases](https://openairdocs.org/ntsb-findings/01062042/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [North American AT-6D, 7 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=6400416), [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: Loss of control on ground](https://openairdocs.org/ntsb-events/230) (defining event); cases with it: [North American AT-6D, 6 cases](https://openairdocs.org/ntsb-events/230/sequence.md?model=6400416), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [North American AT-6D, 2 cases](https://openairdocs.org/ntsb-events/090/sequence.md?model=6400416), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) - [Landing: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [North American AT-6D, 2 cases](https://openairdocs.org/ntsb-events/060/sequence.md?model=6400416), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md) - [Landing: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241); cases with it: [North American AT-6D, 2 cases](https://openairdocs.org/ntsb-events/241/sequence.md?model=6400416), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md) - [Landing: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [North American AT-6D, 7 cases](https://openairdocs.org/ntsb-events/470/sequence.md?model=6400416), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot reported that, during his ninth touch-and-go landing and shortly after touchdown, the airplane bounced. He wanted to apply partial power and continue to land, but he heard the safety pilot declare, "I have," so the pilot responded, "you have," and gave the controls to the safety pilot. The safety pilot reported that, during landing, the left main landing gear touched down on the runway first, followed by the right main landing gear, and the airplane "popped up" with a nose-high attitude. The airplane started to climb, continued to pitch higher, and rolled right, so he took the controls, applied power, and lowered the nose, but the right wingtip struck the ground, and the airplane impacted terrain. The airplane sustained substantial damage to the engine mount and truss. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Factual narrative The pilot reported that, during his ninth touch and go, shortly after touchdown, the airplane bounced. He wanted to apply partial power and continue to land but he heard the safety pilot declare, "I have," the pilot response, "you have", and gave up controls to the safety pilot. Shortly after, the airplane rolled to the right, the right wing struck the ground, the airplane exited the runway and impacted terrain. The safety pilot reported that during landing, the left main landing gear touched down on the runway first, followed by the right main landing gear, and the airplane "popped up" with a nose high attitude. The airplane started to climb, continued to pitch higher and rolled to the right, so he "took" controls, applied power, and lowered the nose, but the right-wing tip struck the ground and the airplane impacted terrain. The airplane sustained substantial damage to the engine mount and truss. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N6432D](https://openairdocs.org/aircraft/N6432D), registered now, S/N 88-18171 (OpenAirDocs) - Reported make and model: North American AT 6D (5) - Registry model: [North American AT-6D](https://openairdocs.org/model/north-american-at-6d) (registry code 6400416) (OpenAirDocs) - Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 88-18171 - Year built: 1979 - Airframe hours: 4227.2 - Engines: Pratt & Whitney R1340 SERIES 550 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Kaa Corp - Registered owner: Kaa Corp - Airworthiness certificate: Standard, Other - Last inspection: Annual, August 7, 2019 - Departed: CNO, Chino, CA - Destination: CNO, Chino, CA - Airport: CNO, Chino, runway 26L, 7,000 × 150 ft, asphalt - Equipment: None ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 55; injuries: none; private; airplane ratings: single-engine land, multi-engine land, single-engine sea; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review August 9, 2019; seat: front; restraint: 4-point; flight hours: 2,618 total, 34 in this make and model, 2,257 as pilot in command, 38 in the last 90 days, 21 in the last 30 days, 5 in the last 24 hours - Pilot-rated passenger; age 53; injuries: none; commercial; airplane ratings: multi-engine land, single-engine sea, single-engine land; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review January 29, 2018; seat: rear; restraint: 3-point; flight hours: 13,600 total, 30 in this make and model, 5,500 as pilot in command, 210 in the last 90 days, 70 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 270° at 8 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 88 °F, dew point 54 °F - Altimeter: 29.92 inHg - Observed at: KCNO ## 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 20190810013809A](https://openairdocs.org/incident/20190810013809A), Aug 10, 2019: North American AT-6D, Chino, CA, Substantial damage. Aircrafft N6432D was established in a left closed traffic runway 26 at Chino Airport CA performing touch and go landings. On the final landing, N6432D hit the… ## Docket (3 files) The files NTSB released with the investigation on January 17, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=100061. 2.3 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40480020&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Accident Photo (item 2, .PDF, 173 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40480021&FileExtension=.PDF&FileName=Accident%20Photo-Master.PDF - Safety Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 3, .PDF, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40480022&FileExtension=.PDF&FileName=Safety%20Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-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.