GAA15CA246

NTSB accident investigation · Cessna 170A · New Milford, CT · August 30, 2015

Accident · No injuriesData collectionFinal report
Date
August 30, 2015, 09:30 local (13:30 UTC)
Place
New Milford, CT
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N112RPCessna 170A
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report October 8, 2015
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
Federal Aviation Administration
FAA report
20150830015409A
Case key
91908

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 loss of directional control during the landing roll which resulted in a runway excursion and 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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotCessna 170A: 33 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 170A: 23 casesAll aircraft: 3,958 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 wheel landing on the grass runway, and during the landing roll let the tailwheel settle to the ground. When the tailwheel touched down, the tail moved to the right and the nose of the airplane veered to the left. The airplane exited the left side of the runway and as it came to a stop it rolled to the right and the right wing and horizontal stabilizer impacted the ground. The airplane sustained substantial damage to the right wing, aileron, right horizontal stabilizer, elevator, and the fuselage. The pilot reported 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 wheel landing on the grass runway, and during the landing roll let the tailwheel settle to the ground. When the tailwheel touched down, the tail moved to the right and the nose of the airplane veered to the left. The airplane exited the left side of the runway and as it came to a stop it rolled to the right and the right wing and horizontal stabilizer impacted the ground. The airplane sustained substantial damage to the right wing, aileron, right horizontal stabilizer, elevator, and the fuselage. The pilot reported no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Aircraft

Registration
N112RP
Reported as
Cessna 170A
Category
Airplane
Serial number
19422
Built
1961
Airframe hours
4,122
Engine
Continental Motors C-145-2, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Mountain Aviation LLC
Registered owner
Mountain Aviation LLC
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · May 15, 2015
Departed
OXC · Oxford, CT
Destination
11N · New Milford, CT
Airport
11N · Candlelight Farms, runway 35, 2,900 × 50 ft, grass/turf
Equipment
Stall warning system

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
39
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
July 19, 2015
Seat
Left
Restraint
Lap only
Flight hours
464 total · 8 in this make and model · 304 as pilot in command · 30 in the last 90 days · 13 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
240° at 4 knots
Visibility
9 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 63 °F
Altimeter
30.12 inHg
Observed at
KDXR, 12 nm away

Docket · 2

The files NTSB released with the investigation on September 24, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 811 KB 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.