ERA23LA198

NTSB accident investigation · S C Aerostar S A YAK-52 · Toughkenamon, PA · March 22, 2023

Accident · No injuriesClass 3 · LimitedFinal report
Date
March 22, 2023, 13:15 local (17:15 UTC)
Place
Toughkenamon, PA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N669YKS C Aerostar S A YAK-52
Defining event
Approach-VFR pattern final: Collision during takeoff/land
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
20230322003159A
Case key
107072

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 failure to see and avoid powerlines while on approach to land.

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.

Action: lack of actionPersonnel issues › Action/decision · PilotS C Aerostar S A YAK-52: 1 caseAll aircraft: 792 casesProbable cause
Object/animal/substance: wireEnvironmental issues › Physical environment · Awareness of conditionS C Aerostar S A YAK-52: 1 caseAll aircraft: 588 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 pilot reported that while on final approach to the destination airport the airplane unexpectedly began to descend. The pilot added power, pitched up, and arrested the descent. Seeing no obstacles in front of the airplane, the pilot elected to continue the approach and subsequently impacted power lines; the impact resulted in substantial damage to the right aileron. The pilot reported that he never saw the powerlines and therefore did not make any attempt to avoid them. The pilot reported that there were no known preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation during the flight.

Factual narrative

On March 22, 2023, at 1315 eastern daylight time, a SC Aerostar Yak-52, N669YK, was substantially damaged when it was involved in an accident near Toughkenamon, Pennsylvania. The private pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that he departed from his home airport bound for the New Garden Airport (N57), Toughkenamon, Pennsylvania. He reported “I did not want to upset my passenger with a significant descent rate in addition to the turbulence, so, with my passenger in mind, I flew my final approach at an altitude that supported a gentle rate of descent.” He also reported that he “had to extend my downwind for slower landing traffic, which forced a longer straight in approach.” While on the final leg of the traffic pattern the airplane unexpectantly began to descend. The pilot added power and pitched up to arrest the descent. After arresting the descent, the pilot continued the approach. Witness video from a dash camera of a vehicle nearby showed the airplane impacting a set of powerlines. After impacting the powerlines, the pilot landed in a field just short of the runway. The impact with the powerlines resulted in substantial damage to the right aileron. The pilot reported “it was physically not possible for me to see the powerlines from my seat in the aircraft at the altitude and attitude I was flying” and that he did not make any attempt to avoid the lines. In a video posted to an internet video publishing platform, the pilot recounted details of the accident, “After the airplane sank, I shoved up the power, raised the nose a bit, and stopped the sink. I could still see down the runway, so I continued the approach, didn’t see anything directly in front of me.” Furthermore, he said, “I thought I was further, closer, to the airport than I was, didn’t factor these into being a hazard potentially” when referencing the powerlines. The pilot reported that there were no known preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. He also reported that the airplane performed as it normally did for the duration of the flight before the accident.

Aircraft

Registration
N669YK
Reported as
S C Aerostar S A YAK-52
Category
Airplane
Serial number
844206
Built
1984
Airframe hours
1,464.7
Engine
Vedenev M14P, 360 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Acroholics LLC
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · July 28, 2022 · 21.1 hours before
Departed
ILG · New Castle, DE
Destination
Same as departure
Airport
N57 · New Garden, runway 24, 3,693 × 60 ft, asphalt
Equipment
ADS-B, Electronic primary flight display

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
34
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Waiver time limited special
Last flight review
July 19, 2022
Seat
Front
Restraint
5-point
Flight hours
217 total · 110 in this make and model · 150 as pilot in command · 4 in the last 90 days · 1 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 8 knots
Visibility
10 statute miles
Temperature
63 °F, dew point 36 °F
Altimeter
30.30 inHg
Turbulence
Unknown
Observed at
ILG, 12 nm away
METAR
KILG 221751Z 16008KT 10SM FEW100 17/02 A3030 RMK AO2 SLP260 T01670022 10167 20056 58024

Docket · 6

The files NTSB released with the investigation on June 5, 2024, on NTSB’s docket system: statements, records, photos and specialists’ reports. 69.0 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.