SEA02LA001

NTSB accident investigation · Cessna 172 · Lindsay, MT · October 1, 2001

Accident · Serious injuriesLimited investigationFinal report
Date
October 1, 2001, 17:00 local (23:00 UTC)
Place
Lindsay, MT
Injuries
1 serious
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N3910FCessna 172
Weather
Visual (VMC) · Day
Status
Completed · report June 3, 2002
Report
Approved by Office Director
Parties
FAA- Helena FSDO
FAA report
20011001028509A
Case key
53587

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 an altitude clear of terrain. A factor was intentional low altitude flight.

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.

In flight collision with terrain/waterCruise - normal
Altitude/clearance - not maintainedPilot in commandCause
Low altitude flight/maneuver - intentionalPilot in commandFactor

Analysis

The pilot reported that he was flying in cruise configuration at 300 feet AGL when the aircraft collided with the terrain. He reported that a communication radio was making wind noise, and he was attempting to adjust it at the time of the accident. The pilot reported that he could not remember the details surrounding the accident sequence. There was no report of mechanical malfunction or failure at the time of the accident.

Factual narrative

On October 1, 2001, about 1700 mountain daylight time, a Cessna 172, N3910F, was destroyed when it collided with terrain near Lindsay, Montana. The airplane was owned by the pilot, and was being operated as a personal/pleasure flight under the provisions of Title 14, CFR Part 91, when the accident occurred. The private pilot, the sole occupant of the airplane, received serious injuries. Visual meteorological conditions prevailed, and a visual flight rules (VFR) flight plan was filed and activated for the cross-country flight. The flight originated from Glendive, Montana (GDV), approximately 30 minutes prior to the accident. The pilot's planned destination was Helena, (HLN), Montana.

During a telephone interview with a NTSB investigator on October 1st, the pilot reported that he was adjusting the airplane's radio while in a cruise configuration at an altitude of 300 feet above ground level (AGL). The pilot reported in a written statement that the communications radio on the copilot side was making noise due to airflow from the vent, and he was attempting to adjust its position just prior to the accident. He reported that he remembered "pulling up" just before the airplane collided with terrain. The pilot stated that he was unable to recall any of the detailed events leading up to the accident.

The pilot reported in a written statement that prior to the flight, he amended the flight plan cruise altitude from 6500 feet to 4500 feet. The pilot reported on the Pilot/Operator Aircraft Accident Report Form no mechanical malfunction or failure at the time of the accident.

The automated weather observation at Glendive, Montana (GDV), at 1655 reported winds from 160 degrees at 6 knots, 10 statute miles visibility, and clear skies. Glendive is approximately 25 nautical miles west of the accident site.

Aircraft

Registration
N3910F
Reported as
Cessna 172
Category
Airplane
Serial number
36810
Airframe hours
3,100
Engine
Continental O-300, 145 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · March 24, 2001 · 100 hours before
Departed
GDV · Glendive, MT
Destination
HLN · Helena, MT
Flight plan
VFR

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
41
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Last flight review
November 1, 2000
Seat
Left
Flight hours
339 total · 95 in this make and model · 272 as pilot in command · 47 in the last 90 days · 18 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 45 °F
Altimeter
29.87 inHg
Observed at
GDV, 25 nm away

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 N3910F · 1

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