CEN20CA225

NTSB accident investigation · Cessna 170 · Aitkin, MN · June 9, 2020

Accident · No injuriesClass 4 · Data collectionFinal report
Date
June 9, 2020, 12:10 local (17:10 UTC)
Place
Aitkin, MN
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2681DCessna 170
Defining event
Landing-flare/touchdown: Hard landing
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
Federal Aviation Administration, Minneapolis FSDO
FAA report
20200609006609A
Case key
101424

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 flight instructor's delayed remedial action, which resulted in a hard landing and loss of directional control while landing with a crosswind.

Findings · 5

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.

Action: delayed actionPersonnel issues › Action/decision · Instructor/check pilotCessna 170B: 6 casesAll aircraft: 894 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Instructor/check pilotCessna 170B: 91 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 170B: 13 casesAll aircraft: 1,681 casesProbable cause
Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 170B: 6 casesAll aircraft: 265 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Effect on operationCessna 170B: 13 casesAll aircraft: 1,008 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 flight instructor stated that he and the student pilot made a straight-in landing approach to the turf runway with a 6 to 7 knot right crosswind. The student intended to make a full-stall landing with the wing flaps extended 20°. Upon touchdown there was a wind gust, which caused the airplane to bounce and drift left over the runway. The flight instructor told the student pilot to add engine power to abort the landing. The student pilot increased engine power, but the airplane continued drifting left over the runway. The airplane bounced a second time, at which time the flight instructor took control of the airplane. The flight instructor stated that the airplane was "skimming the grass" and was "behind the power curve" as he attempted to regain control of the airplane and establish a climb. The airplane impacted the airport perimeter fence about 70 yards left of the runway edge. An engine mount support tube and both wings were substantially damaged during the accident. The flight instructor reported that there were no mechanical anomalies with the airplane that would have precluded normal operation.

Aircraft

Registration
N2681D
Reported as
Cessna 170 (B)
Category
Airplane
Serial number
20833
Built
1952
Airframe hours
2,538
Engine
Continental C145, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 23, 2019 · 9 hours before
Departed
BRD · Brainerd, MN
Destination
AIT · Aitkin, MN
Airport
AIT · Aitkin Municipal Airport, runway 08, 3,123 × 140 ft, grass/turf
Equipment
Handheld GPS, 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
22
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine sea, Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Without waivers/limitations
Last flight review
November 18, 2019
Seat
Right
Restraint
Lap only
Flight hours
1,984.5 total · 113 in this make and model · 1,436 as pilot in command · 49 in the last 90 days · 8 in the last 30 days · 0 in the last 24 hours
Role
Student pilot
Age
63
Injuries
None
Certificate
Student
Medical
Class 3, With waivers/limitations
Last flight review
March 30, 2020
Seat
Left
Restraint
Lap only
Flight hours
88 total · 88 in this make and model · 30 as pilot in command · 5 in the last 90 days · 2 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 63 °F
Altimeter
29.62 inHg
Observed at
AIT

Docket · 6

The files NTSB released with the investigation on June 29, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.6 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.