GAA18CA075

NTSB accident investigation · Jones Kent C Vans RV-10 · Limon, CO · December 8, 2017

Accident · Minor injuriesData collectionFinal report
Date
December 7, 2017, 19:50 local (Dec 8, 2017, 02:50 UTC)
Place
Limon, CO
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N9738JJones Kent C Vans RV-10
Defining event
Approach: Collision during takeoff/land
Weather
Visual (VMC) · Night/dark
Status
Completed · report February 21, 2018
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20171207022829A
Case key
96442

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 pilot’s unstabilized approach and failure to go around at night, which resulted in the airplane impacting a power line and a subsequent hard landing.

Findings · 7

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: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedJones Kent C VANS RV-10: 1 caseAll aircraft: 809 casesProbable cause
Object/animal/substance: wireEnvironmental issues › Physical environment · Effect on operationJones Kent C VANS RV-10: 1 caseAll aircraft: 588 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationJones Kent C VANS RV-10: 1 caseAll aircraft: 1,199 cases
Light condition: darkEnvironmental issues › Conditions/weather/phenomena · Effect on personnelJones Kent C VANS RV-10: 1 caseAll aircraft: 448 cases
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomeJones Kent C VANS RV-10: 1 caseAll aircraft: 933 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 a night approach, the runway precision approach path indicator lights indicated that the airplane was on a proper glidepath. Shortly after, the airplane encountered a "strong gust of wind" and "lost significant altitude." He added engine power and raised the airplane's nose to intercept the glidepath. A few seconds later, he felt a slight bump and heard a scraping noise to his right. He looked to the right, and when he returned his focus to the approaching runway, he noticed that the airport lights were no longer lit, and the airport was in "complete darkness." He added that he "couldn't really see anything and wasn't sure exactly where the runway was, [but he] knew [he] was going to have a hard landing." He then pulled the power back, moved the mixture to idle cut off, and turned the fuel selector off. Subsequently, the airplane landed hard off the runway, bounced, slid sideways, struck a tree, and then came to rest. The airplane sustained substantial damage to the fuselage, both wings, and empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. Following the accident, it was discovered that, during the approach, the airplane struck a power line that supplied the airport power. The automated weather observation system at the accident airport reported that, about the time of the accident, the wind was from 330° at 6 knots. The pilot was on a visual approach for runway 34. According to the Federal Aviation Administration inspector assigned to the accident, the power line was estimated to be 75 ft above the ground and 1/2 mile from the runway threshold. The power line crossed perpendicular to the runway.

Factual narrative

The pilot reported that, during a night approach, the runway Precision Approach Path Indicator lights indicated the airplane was on a proper glide path. Shortly afterward, the airplane encountered a "strong gust of wind" and "lost significant altitude". He added engine power and raised the airplane's nose to intercept the glide path. A few seconds later, he felt a slight bump and heard a scraping noise to his right. He looked to the right and when he returned his focus to the approaching runway, he noticed that the airport lights were no longer lit, and the airport was in "complete darkness". He added that, he "couldn't really see anything and wasn't sure exactly where the runway was, [but he] knew [he] was going to have a hard landing". He then pulled the power back, moved the mixture to idle cut off, and turned the fuel selector off. Subsequently, the airplane landed hard off the runway, bounced, and slid sideways coming to rest after striking a tree. The airplane sustained substantial damage to the fuselage, both wings and empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. Following the accident, it was discovered that during the approach the airplane struck a powerline that supplied the airport power. The automated weather observation system at the accident airport reported, about the time of the accident that the wind was from 330° at 6 knots. The pilot was on a visual approach for runway 34. According to the Federal Aviation Administration investigator assigned to the accident, stated in a telephone conversation with the National Transportation Safety Board investigator in charge, the powerline was estimated to be 75 ft. above the ground and one half mile from the runway threshold. The powerline crossed perpendicular to the runway.

Aircraft

Registration
N9738J
Reported as
Jones Kent C Vans RV-10 (NO SERIES)
Category
Airplane, amateur-built
Serial number
40296
Built
2010
Airframe hours
925
Engine
Lycoming IO-540-X, 290 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
100 hour · October 5, 2017
Departed
OJC · Olathe, KS
Destination
LIC · Limon, CO
Airport
LIC · Limon Muni, runway 34, 4,700 × 60 ft, concrete
Equipment
ADS-B, Stall warning system, Satellite tracking device, Onboard weather, Electronic primary flight display, Electronic multifunction display, Electronic flight bag or handheld device, Auto-pilot, 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
Class 3, Without waivers/limitations
Last flight review
March 23, 2017
Seat
Left
Restraint
4-point
Flight hours
355 total · 259.3 in this make and model · 315 as pilot in command · 109.9 in the last 90 days · 28.3 in the last 30 days

Weather

Conditions
Visual (VMC) · Night/dark
Wind
330° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
27 °F, dew point 10 °F
Altimeter
30.13 inHg
Observed at
KLIC

Docket · 3

The files NTSB released with the investigation on January 25, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.5 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.