ERA20LA286

NTSB accident investigation · Just JA 30 Superstol · Clover, SC · August 15, 2020

Accident · Minor injuriesClass 3 · LimitedFinal report
Date
August 15, 2020, 15:30 local (19:30 UTC)
Place
Clover, SC
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N146BBJust JA 30 Superstol
Defining event
Initial climb: Loss of engine power (partial)
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20200815015759A
Case key
101799

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 separation of a spark plug lead, resulting in a partial loss of engine power and collision with trees.

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.

Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleMatt Mcswain JA30 SUPERSTOL: 1 caseAll aircraft: 265 cases

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 initial takeoff, the airplane was not developing adequate lift and was not climbing as expected. He maneuvered to avoid trees at the end of the runway; however, the airplane collided with the trees and the pilot lost airplane control. The airplane came to rest in a wooded area and sustained substantial damage. Examination of the engine revealed adequate fuel for the flight. Further examination of the engine revealed that one of the spark plug leads became disconnected and there was no postaccident impact damage in this area. The separated spark plug lead most likely resulted in a partial loss of engine power during takeoff.

Factual narrative

On August 15, 2020, about 1530 eastern daylight time, an experimental, amateur built Just Aircraft LLC, JA30 Superstol, N146BB, was substantially damaged when it was involved in an accident at a private airstrip near Clover, South Carolina. The private pilot had minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that he landed at a private, grass airstrip during the flight from York Airport (01SC), York, South Carolina, to Gastonia Municipal Airport (AKH), Gastonia, North Carolina. He landed uneventfully and taxied for a takeoff to the northwest. During the initial climb, he noted that the airplane was not developing lift or climbing as he expected. He maneuvered to avoid some trees; however, the airplane contacted the trees and he was unable to maintain control. The airplane crashed in a wooded area and he was met by first responders. An inspector with the Federal Aviation Administration responded to the accident site and examined the wreckage. He reported that there was substantial damage to the wings, fuselage, and empennage. There was no fire. The inspector found adequate fuel on board for the flight. The propeller was splintered from contact with trees. Internal engine continuity was established. The linkage to the engine controls was intact. Further examination of the engine revealed that the right, forward cylinder spark plug lead was separated from the plug. There was no evidence of impact damage in this area.

Aircraft

Registration
N146BB
Reported as
Just JA 30 Superstol
Category
Airplane, amateur-built
Serial number
JA335-12-13
Built
2016
Airframe hours
250
Engine
Rotax 912S, 100 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · February 20, 2020
Destination
AKH · Gastonia, NC
Airport
PVT · N/A, runway 32, 1,000 × 50 ft, grass/turf
Equipment
Onboard weather, Electronic flight bag or handheld device, Angle of attack indicator

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
45
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Sport pilot, Without waivers/limitations
Seat
Left
Restraint
4-point
Flight hours
1,402 total · 350 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 3 knots
Visibility
10 statute miles
Lowest ceiling
2,100 ft broken
Temperature
84 °F, dew point 73 °F
Altimeter
29.81 inHg
Observed at
KAKH, 5 nm away

Docket · 4

The files NTSB released with the investigation on May 4, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 18.3 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.