NYC99LA116

NTSB accident investigation · Nations Acro Sport II · Pence Springs, WV · May 23, 1999

Accident · FatalLimited investigationFinal report
Date
May 22, 1999, 20:15 local (May 23, 1999, 00:15 UTC)
Place
Pence Springs, WV
Injuries
1 fatal, 1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N113JNNations Acro Sport II
Weather
Visual (VMC) · Day
Status
Completed · report December 4, 2000
Report
Approved by Office Director
FAA report
19990522023919A
Case key
46383

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 student pilot's improper decision to perform aerobatics, and his failure to maintain aircraft control, which resulted in an inadvertent spin. A factor in the accident was the pilot's lack of aerobatic experience.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightManeuvering
In-flight planning/decision - improperPilot in commandCause
Aerobatics - performedPilot in command
Aircraft control - not maintainedPilot in commandCause
Stall/spin - inadvertentPilot in command
Lack of total experience in type operationPilot in commandFactor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - mountainous/hilly

Analysis

The student pilot was conducting a local flight with a passenger. The student pilot elected to engage in aerobatics. While at 1,000 feet agl, the student pilot attempted his first roll ever in the accident airplane. He entered a roll to the left, and then accidentally transitioned into a spin. He reduced the power, placed the pilot's stick to neutral, added full right rudder to counter the spin to the left. However, the airplane impacted terrain. Flight control continuity was established, and a witness reported hearing the engine operating until impact. The student pilot had a total of 75 hours of flight experience, and 25 hours in make and model. Included in the 75 hours, was 4 hours of dual instruction in a tailwheel equipped airplane, which included 'some' aerobatic training. In addition, the student had received spin, and spin recovery training. The student pilot had successfully completed 10 to 15 rolls in an Acro Sport I, and felt comfortable attempting a roll in the Acro Sport II.

Factual narrative

On May 22, 1999, about 2015 eastern daylight time, a homebuilt Acro Sport II, N113JN, was destroyed after it impacted terrain near Pence Springs, West Virginia. The certificated student pilot received serious injuries, and the passenger was fatally injured. Visual meteorological conditions prevailed, and no flight plan was filed for the personal flight conducted under 14 CFR Part 91.

According to a witness at the Hinton-Alderson Airport, Pence Springs, West Virginia, the pilot did one takeoff, and one landing before taxing back to pickup his 15 year old son. The pilot then taxied to the runway, and departed. After becoming airborne, the airplane made a right turn to the south, and the witness did not mention the airplane returning.

About 2015, several witnesses that where fishing along the Greenbrier River, reported that the airplane approached the accident site from the northeast, and started to execute a loop. Halfway through the loop, the airplane entered a spin, and the spin continued until the airplane impacted the ground. One of the witnesses reported a reduction in engine noise when the airplane was halfway through the loop. He then heard it increase while the airplane was in the spin.

A Federal Aviation Administration (FAA) Inspector examined the wreckage on May 24, 1999, at the accident site. He verified flight control continuity. He also verified crankshaft, piston, valve train, and accessory gearbox continuity. He observed fuel in the line that connected the engine to the airframe.

According to the student pilot, he had a total of 75 hours of flight experience, and 25 hours in the accident airplane. Included in the 75 hours, was 4 hours of dual instruction in a tailwheel equipped airplane, which included "some" aerobatic training. In addition, the student had received spin, and spin recovery training.

Regarding the day of the accident, the student pilot stated that he was attempting a roll for the first time in the accident airplane. He entered a roll to the left, at 1,000 feet agl, and then accidentally transitioned into a spin. He reduced the power, placed the pilot's stick to neutral, and added full right rudder to counter the spin to the left. The airplane remained in the spin until impacting terrain. The passenger was in the front seat of the Bi-wing tandem seat airplane. The student pilot added that he had successfully completed 10 to 15 rolls in an Acro Sport I, and felt comfortable attempting a roll in the Acro Sport II, a two place version of the Acro Sport I.

Aircraft

Registration
N113JN
Reported as
Nations Acro Sport II (ACRO SPORT)
Category
Airplane, amateur-built
Serial number
113
Engine
Lycoming O-320, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Registered owner
Gary Williams
Airworthiness certificate
Special, Experimental (Special)
Departed
W59 · Pence Springs, WV

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
42
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Rear
Flight hours
75 total · 25 in this make and model · 55 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots
Visibility
10 statute miles
Lowest ceiling
9,500 ft overcast
Temperature
63 °F, dew point 57 °F
Altimeter
29.00 inHg
Observed at
BKW, 23 nm away

FAA reports on this event · 1

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