GAA15CA223

NTSB accident investigation · Cessna 170B · Driggs, ID · August 11, 2015

Accident · Minor injuriesData collectionFinal report
Date
August 11, 2015, 15:00 local (21:00 UTC)
Place
Driggs, ID
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2369DCessna 170B
Defining event
Landing-flare/touchdown: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report September 30, 2015
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
Federal Aviation Adminstration
FAA report
20150811012589A
Case key
91778

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's failure to maintain directional control during the landing roll, which resulted in a runway excursion and a nose over.

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 170B: 91 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 170B: 74 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 during touchdown for landing, a gust of wind blew the airplane to the right of the runway centerline. The pilot attempted to correct with control inputs, but the airplane continued to the right and exited the runway. The right main landing gear wheel dug in to the dirt and the airplane came to rest inverted. The airplane sustained substantial damage to fuselage, wings, horizontal stabilizer, and rudder. The wind reported from a weather station at the airport about the time of the accident were from 250 degrees at 7 knots. The pilot reported he was landing runway 21. 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 during touchdown for landing, a gust of wind blew the airplane to the right of the runway centerline. The pilot attempted to correct with control inputs, but the airplane continued to the right and exited the runway. The right main landing gear wheel dug in to the dirt and the airplane came to rest inverted. The airplane sustained substantial damage to fuselage, wings, horizontal stabilizer, and rudder. The wind reported from a weather station at the airport about the time of the accident were from 250 degrees at 7 knots. The pilot reported he was landing runway 21. The pilot reported no preimpact mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.

Aircraft

Registration
N2369D
Reported as
Cessna 170B
Category
Airplane
Serial number
20521
Built
1952
Airframe hours
2,850
Engine
Continental O-300-A, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 10, 2015
Departed
RAP · Rapid City, SD
Destination
DIJ · Driggs, ID
Flight plan
VFR
Airport
DIJ · Driggs-Reed Memorial, runway 21, 7,300 × 100 ft, asphalt
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
27
Injuries
None
Certificates
Private, Military
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
April 16, 2014
Seat
Left
Restraint
Lap only
Flight hours
1,567 total · 30 in this make and model · 1,300 as pilot in command · 220 in the last 90 days · 50 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
88 °F, dew point 43 °F
Altimeter
30.26 inHg
Observed at
KDIJ

Docket · 5

The files NTSB released with the investigation on September 11, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.4 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.