WPR23LA165

NTSB accident investigation · Oneal J R/Oneal R C EDI Express · Tracy, CA · April 24, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
April 24, 2023, 13:45 local (20:45 UTC)
Place
Tracy, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N92734Oneal J R/Oneal R C EDI Express
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
FAA
Case key
107122

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot’s failure to maintain directional control during the takeoff roll.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that during the takeoff roll, the airplane drifted to the left and he corrected with right brake input. The airplane began drifting left again, and the pilot was unable to correct with right rudder or brake. The airplane briefly became airborne and then landed in the grass to the left of the runway. The airplane sustained substantial damage to the engine mount. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N92734
Reported as
Oneal J R/Oneal R C EDI Express
Category
Airplane, amateur-built
Serial number
166
Built
1996
Airframe hours
652
Engine
Lycoming TIO-540-1CA, 250 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · April 19, 2022 · 1 hours before
Destination
Same as departure
Airport
TCY · Tracy Muni, runway 30, 4,001 × 75 ft, asphalt
Equipment
Electronic primary flight display, Handheld GPS, Onboard weather, ADS-B, Electronic multifunction display, Auto-pilot, Electronic flight bag or handheld device

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
64
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Unknown, With waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
775 total · 42 in this make and model · 662 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 10 knots, gusting 17
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 43 °F
Altimeter
29.92 inHg
Observed at
KMOD, 23 nm away
METAR
KMOD 242053Z 34010G17KT 10SM CLR 26/06 A2992 RMK AO2 SLP129 T02610061 58012

Docket · 2

The files NTSB released with the investigation on September 8, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.8 MB in all.