GAA17CA153

NTSB accident investigation · Stinson 108 · Valparaiso, IN · February 20, 2017

Accident · No injuriesData collectionFinal report
Date
February 20, 2017, 09:40 local (15:40 UTC)
Place
Valparaiso, IN
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9277KStinson 108
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 20, 2017
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20170220002689A
Case key
94759

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 while landing with a crosswind.

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: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedStinson 108-2: 13 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotStinson 108-2: 14 casesAll aircraft: 9,295 casesProbable cause
Runway/land/takeoff/taxi surface: soft surfaceEnvironmental issues › Physical environment · Effect on equipmentStinson 108-2: 2 casesAll aircraft: 264 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 of the tailwheel-equipped airplane reported that, during landing, as the tail came down, a "sizable gust weathervaned" the airplane to the left. He added that, he "made aggressive inputs to correct the direction" but was unsuccessful. He further added that, once the airplane veered off the runway and into the grass, he could feel the mains begin to sink into the soft ground. Subsequently, the airplane nosed over. The airplane sustained substantial damage to the right wing lift struts and empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. A review of recorded data from the automated weather observation station located on the airport revealed that, about 16 minutes after the accident, the wind was from 170° at 9 knots. The airplane landed on runway 18.

Factual narrative

The pilot of the tailwheel-equipped airplane reported that, during landing, as the tail came down, a "sizable gust weathervaned" the airplane to the left. He added that, he "made aggressive inputs to correct the direction", but was unsuccessful. He further added that, once the airplane veered off the runway and into the grass, he could feel the mains begin to sink into the soft ground. Subsequently, the airplane nosed over. The airplane sustained substantial damage to the right wing lift struts and empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. A review of recorded data from the automated weather observation station located on the airport, revealed that, about 16 minutes after the accident, the wind was 170° at 9 knots. The airplane landed on runway 18.

Aircraft

Registration
N9277K
Reported as
Stinson 108 (2)
Category
Airplane
Serial number
108-2277
Built
1947
Engine
Franklin 6A4165 SERIES, 165 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Utility; Standard, Normal
Departed
Private, IN
Destination
VPZ · Valparaiso, IN
Airport
VPZ · Porter County Rgnl, runway 18, 4,001 × 75 ft, asphalt
Equipment
Unknown

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
54
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
June 4, 2015
Seat
Left
Restraint
4-point
Flight hours
330 total · 296 in this make and model · 241 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 9 knots
Visibility
5 statute miles
Lowest ceiling
None
Temperature
57 °F, dew point 48 °F
Altimeter
30.17 inHg
Observed at
KVPZ

Docket · 2

The files NTSB released with the investigation on June 26, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.8 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.