ERA15CA100

NTSB accident investigation · Shannon William RV6A · Pikeville, KY · January 14, 2015

Accident · Minor injuriesData collectionFinal report
Date
January 14, 2015, 17:00 local (22:00 UTC)
Place
Pikeville, KY
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N32SNShannon William RV6A
Defining event
Landing-flare/touchdown: Aerodynamic stall/spin
Weather
Visual (VMC) · Day
Status
Completed · report March 10, 2015
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20150114000949A
Case key
90601

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 failure to maintain airspeed during landing, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's failure to obtain a preflight weather briefing, and his subsequent flight into icing conditions, which resulted in the accumulation of ice on the airframe.

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.

Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedShannon William RV6A: 1 caseAll aircraft: 1,681 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotShannon William RV6A: 1 caseAll aircraft: 9,295 casesProbable cause
Temp/humidity/pressure: conducive to structural icingEnvironmental issues › Conditions/weather/phenomena · Awareness of conditionShannon William RV6A: 1 caseAll aircraft: 103 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 had purchased the airplane the day prior, and was returning to his home airport when he elected to stop at an intermediate airport for fuel. After crossing the runway threshold, the pilot reduced engine power and entered the landing flare. He felt the airplane "balloon up slightly, then stall and drop around 15 feet" onto the runway. The airplane impacted the runway, the nose landing gear collapsed, and the airplane subsequently ran off the side of the runway, where it came to rest inverted, resulting in substantial damage to the rudder. Photographs of the airplane taken by the airport manager following the accident depicted the presence of rime ice along the leading edges of the wings, horizontal stabilizer, and vertical stabilizer. The pilot reported that he had not obtained a weather briefing, but had conducted a cursory review of enroute weather via an online vendor prior to the flight, and was not aware of icing conditions along his intended route of flight. He also stated there were no preimpact mechanical malfunctions or anomalies with the airplane that would have precluded normal operation.

Factual narrative

The pilot had purchased the airplane the day prior, and was returning to his home airport when he elected to stop at an intermediate airport for fuel. After crossing the runway threshold, the pilot reduced engine power and entered the landing flare. He felt the airplane "balloon up slightly, then stall and drop around 15 feet" onto the runway. The airplane impacted the runway, the nose landing gear collapsed, and the airplane subsequently ran off the side of the runway, where it came to rest inverted, resulting in substantial damage to the rudder. Photographs of the airplane taken by the airport manager following the accident depicted the presence of rime ice along the leading edges of the wings, horizontal stabilizer, and vertical stabilizer. The pilot reported that he had not obtained a weather briefing, but had conducted a cursory review of enroute weather via an online vendor prior to the flight, and was not aware of icing conditions along his intended route of flight. He also stated there were no preimpact mechanical malfunctions or anomalies with the airplane that would have precluded normal operation.

Aircraft

Registration
N32SN
Reported as
Shannon William RV6A
Category
Airplane, amateur-built
Serial number
23805
Built
2001
Airframe hours
732
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Norm Cyr Aircraft Sales LLC
Registered owner
Norm Cyr Aircraft Sales LLC
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · January 1, 2015 · 6 hours before
Departed
FSO · Highgate, VT
Destination
M91 · Springfield, TN
Airport
PBX · Pike County-Hatcher Field, runway 27, 5,356 × 100 ft, asphalt
Equipment
Auto-pilot, Electronic primary flight display, 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
50
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
December 8, 2014
Seat
Left
Restraint
4-point
Flight hours
172 total · 7 in this make and model · 108 as pilot in command · 40 in the last 90 days · 18 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
300° at 3 knots
Visibility
10 statute miles
Lowest ceiling
1,600 ft overcast
Temperature
28 °F, dew point 28 °F
Altimeter
30.22 inHg
Icing
Rime
Observed at
PBX

Docket · 8

The files NTSB released with the investigation on February 13, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 11.7 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.