Tuesday, March 24, 2020

Loss of Control on Ground: North American SNJ-4 Texan, N6432D; accident occurred August 10, 2019 at Chino Airport (KCNO), San Bernardino County, California

View of damaged engine mount and truss. 
Federal Aviation Administration

Safety Pilot

Additional Participating Entity: 
Federal Aviation Administration / Flight Standards District Office; Riverside, California

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms


Location: Chino, CA
Accident Number: GAA19CA493
Date & Time: 08/10/2019, 1254 PDT
Registration: N6432D
Aircraft: North American AT 6D
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Personal 

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.

Pilot Information

Certificate: Private
Age: 55, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 Without Waivers/Limitations
Last FAA Medical Exam: 02/01/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent: 08/09/2019
Flight Time:  (Estimated) 2618 hours (Total, all aircraft), 34 hours (Total, this make and model), 2257 hours (Pilot In Command, all aircraft), 38 hours (Last 90 days, all aircraft), 21 hours (Last 30 days, all aircraft), 5 hours (Last 24 hours, all aircraft) 

Pilot-Rated Passenger Information

Certificate: Commercial
Age: 53, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Rear
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 Without Waivers/Limitations
Last FAA Medical Exam: 01/29/2018
Occupational Pilot: Yes
Last Flight Review or Equivalent: 01/29/2018
Flight Time:  (Estimated) 13600 hours (Total, all aircraft), 30 hours (Total, this make and model), 5500 hours (Pilot In Command, all aircraft), 210 hours (Last 90 days, all aircraft), 70 hours (Last 30 days, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: North American
Registration: N6432D
Model/Series: AT 6D 5
Aircraft Category: Airplane
Year of Manufacture: 1979
Amateur Built: No
Airworthiness Certificate: Other
Serial Number: 88-18171
Landing Gear Type: Retractable - Tricycle
Seats: 2
Date/Type of Last Inspection: 08/07/2019, Annual
Certified Max Gross Wt.: 5300 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time:  4227.2 Hours at time of accident
Engine Manufacturer: Pratt & Whitney
ELT: C91 installed, activated, aided in locating accident
Engine Model/Series: R1340 SERIES
Registered Owner: Kaa Corp
Rated Power: 550 hp
Operator: Kaa Corp
Operating Certificate(s) Held: None 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KCNO, 650 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 1953 UTC
Direction from Accident Site: 49°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 8 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 270°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.92 inches Hg
Temperature/Dew Point: 31°C / 12°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Chino, CA (CNO)
Type of Flight Plan Filed: None
Destination: Chino, CA (CNO)
Type of Clearance: None
Departure Time: 1100 PDT
Type of Airspace: Class D 

Airport Information

Airport: Chino (CNO)
Runway Surface Type: Asphalt
Airport Elevation: 650 ft
Runway Surface Condition: Dry
Runway Used: 26L
IFR Approach: None
Runway Length/Width: 7000 ft / 150 ft
VFR Approach/Landing: Touch and Go

Wreckage and Impact Information

Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 33.974722, -117.636389 (est)


  1. 9 Touch and Goes???? That's enough mental fatigue for any pilot with only 34 hours in a new complex airplane. We're not 18 year old WWII trainees at 55 years of age!

  2. Hamamatsu Okamoto is a commercial pilot and Certified Flight Instructor with a residence and business in Shizuoka, Japan. When Okamoto visits the United States he is a private pilot.

    Certified Flight Instructor Yanagida plan was to invest to own and have training on T-6 Texan N6432D. Okamoto applied to join and accepted. The plan involved three people, CFI Yanagida, Mr. Matsumoto and Okamoto. Mr. Matsumoto would be ATP in Japan, not sure the status in Japan but never Certified Flight Instructor.

    Okamoto training started just one year before. Okamoto stayed in the United States about a week or less at once, 2018 August, December, 2019 February and August, it was fourth training period.

    After receiving CFI Yanagida's dual instruction of T-6, Okamoto performed training flights in front seat, with so-called safety pilot, Mr. Matsumoto, in rear seat. At start of Okamoto training, he insisted safety pilot not to take his control over, because he should be PIC, otherwise the responsibility could be uncertain in case of accident. But Yanagida and Matsumoto refused to accept Okamoto offer. CFI Yanagida said that he'll be responsible for everything, and requested to believe and follow him. So Okamoto followed their advice, in case safety pilot declare "I have", Okamoto reply "you have" and give all control to him and make no interference to the control. The flight should be Okamoto training, but who will be PIC? If no accident, PIC will be Okamoto. But what in case of accident? The accident happened in such situation.