ERA18LA224

NTSB accident investigation · Glasair SHA · Greenville, NC · August 18, 2018

Accident · No injuriesClass 3 · LimitedFinal report
Date
August 18, 2018, 19:50 local (23:50 UTC)
Place
Greenville, NC · airport property short of runway in the grass
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N38WSGlasair SHA
Defining event
Enroute-climb to cruise: Loss of engine power (total)
Weather
Visual (VMC) · Dusk
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Eastern Region Aviation
Parties
FAA FSDO
FAA report
20180818021169A
Case key
98117

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

A total loss of engine power for reasons that could not be determined based on the available information. Contributing to the accident was the pilot’s misjudgment of the airplane’s glidepath during the forced landing, which resulted in the airplane touching down short of the runway.

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.

Engine (reciprocating)Aircraft › Aircraft power plant · Unknown/Not determinedSmith Weston L SHA-GLASAIR: 1 caseAll aircraft: 497 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedSmith Weston L SHA-GLASAIR: 1 caseAll aircraft: 809 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

While the airplane was climbing through 3,000 ft mean sea level (msl), the engine began running roughly and the fuel flow rate slowed. Shortly after reaching 3,500 ft msl, the engine lost total power. The pilot attempted a forced landing at a nearby airport; however, while in a spiral descent to land, he misjudged the airplane’s glidepath and landed in grass short of the runway. The airplane impacted a drainage ditch, resulting in substantial damage. A detailed examination of the engine and components was not conducted and the reason for the loss of engine power could not be determined.

Factual narrative

On August 18, 2018, about 1950 eastern daylight time, an experimental, amateur-built Glasair SH, N38WS, was substantially damaged when it was involved in an accident near Greenville, North Carolina. The private pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot departed on the cross-country flight and while climbing the airplane through 3,000 ft mean sea level (msl), he noticed that the engine began to run rough; the fuel flow, which was normally “11 to 12, was around 8” gallons per hour. He continued to climb and as he approached 3,500 ft msl, the engine completely “quit.” The pilot spiraled the airplane down to a nearby airport; however, during the last turn to the runway, the airplane was too low. He subsequently landed in the grass short of the runway, where the airplane impacted a drainage ditch before coming to rest. Examination of the airplane by a Federal Aviation Administration (FAA) inspector revealed that the main landing gear was collapsed, which damaged the underside of the fuselage and wings. Review of the airplane’s maintenance records revealed that an engine overhaul was completed about 716 flight hours before the accident flight and 90 hours since the last condition inspection. No additional examination of the engine was conducted.

Aircraft

Registration
N38WS
Reported as
Glasair SHA
Category
Airplane, amateur-built
Serial number
198
Built
1985
Airframe hours
3,098
Engine
Lycoming O-320 SERIES, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · February 23, 2018 · 90 hours before
Departed
GYH · Greenville, SC
Destination
Same as departure
Airport
PGV · Pitt-Greenville
Equipment
Electronic primary flight display, Onboard weather, ADS-B, 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
67
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
August 18, 2016
Seat
Left
Restraint
3-point
Flight hours
3,278 total · 3,277 in this make and model · 3,270 as pilot in command · 47 in the last 90 days · 14 in the last 30 days

Weather

Conditions
Visual (VMC) · Dusk
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 75 °F
Altimeter
29.92 inHg
Observed at
PGV, 1 nm away

Docket · 5

The files NTSB released with the investigation on August 16, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 21.4 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.