GAA16CA344

NTSB accident investigation · Benjamin Harold E RV-4 · Fitchburg, MA · June 25, 2016

Accident · No injuriesData collectionFinal report
Date
June 25, 2016, 16:15 local (20:15 UTC)
Place
Fitchburg, MA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3446Benjamin Harold E RV-4
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 25, 2016
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA Lexington FSDO
FAA report
20160625006669A
Case key
93496

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 directional control upon landing, which resulted in a runway excursion followed by impact with terrain.

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: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedBenjamin Harold E RV-4: 1 caseAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotBenjamin Harold E RV-4: 1 caseAll aircraft: 9,295 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 of the tailwheel-equipped airplane reported that he made a normal three-point landing, shortly after touchdown the airplane veered to the left, then veered to the right. The pilot further reported that he applied power in an attempt to regain control, however the airplane veered back to the left and he reduced power as the airplane departed the runway. The airplane ground looped and the right wing impacted terrain causing substantial damage to the right aileron. The pilot reported there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Factual narrative

The pilot of the tailwheel-equipped airplane reported that he made a normal three-point landing, shortly after touchdown the airplane veered to the left, then veered to the right. The pilot further reported that he applied power in an attempt to regain control, however the airplane veered back to the left and he reduced power as the airplane departed the runway. The airplane ground looped and the right wing impacted terrain causing substantial damage to the right aileron. The pilot reported there were no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Aircraft

Registration
N3446
Reported as
Benjamin Harold E RV-4 (NO SERIES)
Category
Airplane, amateur-built
Serial number
3446
Built
2012
Airframe hours
229
Engine
Lycoming O-320-D2A, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · January 2, 2016
Departed
4C4 · Colebrook, NH
Destination
FIT · Fitchburg, MA
Airport
FIT · Fitchburg Muni, runway 20, 3,504 × 75 ft, asphalt
Equipment
Onboard weather, ADS-B, Electronic flight bag or handheld device, Handheld GPS

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
58
Injuries
None
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
March 8, 2015
Seat
Front
Restraint
4-point
Flight hours
837 total · 234 in this make and model · 641 as pilot in command · 36 in the last 90 days · 12 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
84 °F, dew point 48 °F
Altimeter
30.17 inHg
Observed at
KFIT

Docket · 3

The files NTSB released with the investigation on July 20, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.2 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.