WPR24LA158

NTSB accident investigation · Engineering & Research Ercoupe 415-C · Ontario, OR · May 21, 2024

Accident · Serious injuriesClass 3 · LimitedFinal report
Date
May 21, 2024, 12:15 local (18:15 UTC)
Place
Ontario, OR · airport environment
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N99577Engineering & Research Ercoupe 415-C
Defining event
Landing: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed · report June 10, 2026
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20240521006699A
Case key
194306

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

On this page

Probable cause

The non-certificated pilot’s unstable approach to landing, which resulted in a collision with approach lighting, hard landing, and postimpact fire.

Findings · 4

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 accident flight was the non-certificated pilot's first flight in the airplane, which the pilot had recently purchased and taken possession of on the day of the accident. The airplane was on a steep approach as the pilot attempted to land and hit an approach light short of the runway threshold. The airplane then bounced and struck another set of lights before landing hard on the runway. Subsequently, the airplane came to rest on the runway and a postimpact fire ensued. A witness who arrived at the scene of the accident stated that the pilot told him that he had misjudged the landing. A witness reported that the pilot conducted a steep approach to land, consistent with an unstable approach. The airplane was not available for examination following the accident, and whether a mechanical anomaly contributed to the accident could not be determined. The investigation was unable to determine the extent of the non-certificated pilot’s previous flight experience or whether the pilot had received any formal or informal flight instruction.

Factual narrative

On May 21, 2024, about 1215 Pacific daylight time, an Engineering & Research Ercoupe 415-C airplane, N99577, sustained substantial damage when it was involved in an accident near Ontario, Oregon. The non-certificated pilot sustained serious injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. A certified flight instructor who was in an airplane holding short of runway 15 reported that the airplane was on a steep approach as it attempted to land and struck an approach light short of the runway threshold. The airplane then bounced and struck another set of lights before landing hard on the runway. Subsequently, the airplane came to rest on the runway, and a postimpact fire ensued. The airplane sustained substantial thermal damage to the fuselage, and the pilot sustained serious burn injuries. Another witness who arrived at the scene of the accident stated that the pilot told him that he had misjudged the landing. Subsequently, the airplane was destroyed in a postaccident fire. The wreckage was removed from the runway but was disposed of before the airframe and engine could be examined by the FAA or NTSB. The pilot was not a certificated pilot and did not hold a current FAA medical certificate, nor did he have a current medical; the FAA reported that he was denied a medical certificate about six years before the accident. Multiple attempts were made to contact the pilot; however, those attempts were unsuccessful while the pilot was recovering in a burn unit and under anesthesia. The pilot did not provide a statement to the FAA or NTSB after he was released from the hospital, nor did the pilot submit a National Transportation Safety Board Pilot/Operator Aircraft Accident/Incident Report Form 6120.1.

Aircraft

Registration
N99577
Reported as
Engineering & Research Ercoupe 415-C
Category
Airplane
Serial number
2200
Built
1946
Engine
Continental AC 75, reciprocating
Damage
Substantial damage
Fire
On-Ground
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Airport
ONO · Ontario Muni, runway 15, 5,006 × 100 ft, asphalt
Equipment
Unknown

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
80
Injuries
Serious

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 7 knots
Visibility
10 statute miles
Temperature
66 °F, dew point 28 °F
Altimeter
30.07 inHg
Observed at
KONO
METAR
KONO 211853Z AUTO 28007KT 10SM CLR 19/M02 A3007 RMK AO2 SLP183 T01941022=

Docket · 4

The files NTSB released with the investigation on June 10, 2026, on NTSB’s docket system: statements, records, photos and specialists’ reports. 319 KB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.