SEA91LA228

NTSB accident investigation · Cessna 172N · Butte, MT · August 31, 1991

Accident · No injuriesLimited investigationFinal report
Date
August 31, 1991, 14:02 local (20:02 UTC)
Place
Butte, MT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2396ECessna 172N
Weather
Visual (VMC) · Day
Status
Completed · report March 10, 1993
Report
Approved by Office Director
FAA report
19910831037469A
Case key
41528

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

Unfavorable winds. Factors to the accident were: inadequate weather evaluation and lack of total flight experience.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of control - in flightLanding - flare/touchdown
Weather condition - unfavorable windCause
Weather evaluation - inadequatePilot in commandFactor
Lack of total experiencePilot in commandFactor
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - runway

Analysis

During a local solo instructional flight, the airplane had just entered the flare for landing when it suddenly drifted to the right of the runway. The pilot applied full power and retracted 10 degrees of flaps when the airplane yawed violently to the left and slammed to the ground. A pilot who landed just prior to the accident airplane stated that a dust devil was seen in the local area.

Aircraft

Registration
N2396E
Reported as
Cessna 172N
Category
Airplane
Serial number
172-71265
Engine
Lycoming O-320-H2AD, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Butte Aviation
Departed
BTM · Butte, MT
Airport
BTM · Bert Mooney, runway 11, 5,101 × 75 ft, asphalt

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
38
Certificate
Student
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
63 total · 61 in this make and model · 25 as pilot in command · 35 in the last 90 days · 12 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 4 knots, gusting 12
Visibility
30 statute miles
Lowest ceiling
None
Temperature
-0 °F, dew point -0 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N2396E · 1

Matched to the same aircraft by N-number and date.