WPR18TA238

NTSB accident investigation · Rans S14 · Brownsville, OR · August 20, 2018

Accident · Serious injuriesClass 3Final report
Date
August 20, 2018, 16:40 local (23:40 UTC)
Place
Brownsville, OR
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N140JLRans S14
Defining event
Maneuvering-low-alt flying: Aerodynamic stall/spin
Weather
Visual (VMC) · Dusk
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Portland FSDO
FAA report
20180820011879A
Case key
98142

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 pilot's exceedance of the airplane's critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall, loss of control, and impact with terrain.

Findings · 3

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.

Performance/control parameters: angle of attackAircraft › Aircraft oper/perf/capability · Not attained/maintainedLoomis John C RANS S-14: 1 caseAll aircraft: 990 casesProbable cause

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 sport pilot was circling about 600 ft above ground level and taking photographs of a concert venue. He stated that he slowed the airplane to about 60 mph before entering a steep left turn. During the turn, the airplane stalled and subsequently impacted the ground. The pilot reported that there were no pre-impact mechanical anomalies with the airplane that would have precluded normal operation.

Factual narrative

On August 20, 2018, about 1640 Pacific daylight time, a Rans S14 airplane, N140JL, was substantially damaged when it was involved in an accident near Brownsville, Oregon. The sport pilot received serious injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot stated he had planned to overfly and photograph the location of a recent concert venue. As he arrived over the venue, he descended to about 600 ft above ground level (agl) and decelerated to about 60 miles per hour (mph) before entering a steep left turn. During the turn, he felt the airplane stall, and he attempted to recover as the airplane impacted the ground and struck a fence. The pilot reported there were no mechanical anomalies that would have precluded normal flight.

Aircraft

Registration
N140JL
Reported as
Rans S14
Category
Airplane
Serial number
0392019
Built
1992
Airframe hours
627.9
Engine
Rotax 503, 52 hp, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental light sport (Special)
Last inspection
Continuous airworthiness · May 26, 2018 · 626 hours before
Departed
Harrisburg, OR
Destination
Harrisburg, OR
Equipment
None

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
69
Injuries
Serious
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Seat
Single
Restraint
4-point
Flight hours
410 total · 384.3 in this make and model · 410 as pilot in command · 4.5 in the last 90 days · 1 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
10° at 9 knots
Visibility
4 statute miles
Lowest ceiling
5,000 ft
Temperature
82 °F, dew point 55 °F
Altimeter
29.93 inHg
Observed at
KEUG, 19 nm away

Docket · 3

The files NTSB released with the investigation on June 3, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.0 MB 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.