CHI08CA235

NTSB accident investigation · Cessna 150L · Watertown, SD · August 4, 2008

Accident · Minor injuriesData collectionFinal report
Date
August 3, 2008, 23:00 local (Aug 4, 2008, 04:00 UTC)
Place
Watertown, SD
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N16235Cessna 150L
Defining event
Enroute-cruise: Controlled flight into terr/obj (CFIT)
Weather
Visual (VMC) · Night
Status
Completed · report August 28, 2008
Report
Approved by Office Director
Parties
Rapid City, SD, FSDO
FAA report
20080803843219A
Case key
68730

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 altitude/clearance from terrain during cruise. Contributing to the accident was the night, the haze, and the tall vegetation.

Findings · 4

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: altitudeAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 150L: 4 casesAll aircraft: 1,310 casesProbable cause
TerrainEnvironmental issues › Physical environment · Contributed to outcomeCessna 150L: 1 caseAll aircraft: 267 casesProbable cause
Light condition: darkEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeCessna 150L: 3 casesAll aircraft: 448 casesProbable cause
Ceiling/visibility/precip: haze/smokeEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomeCessna 150L: 2 casesAll aircraft: 21 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 reported that during the cross country night flight he began losing altitude while listening to the automated weather service broadcast for the destination airport. He did not notice the altitude loss. The pilot decided to go to an alternate airport, turned for the alternate, and descended during the turn. At that point he noticed the altitude loss, pulled back on the yoke, and impacted a cornfield. The pilot reported no mechanical malfunctions with the airplane during the accident flight. The pilot's safety recommendation was "haze is deceptive."

Factual narrative

The pilot reported that during the cross country night flight he began losing altitude while listening to the automated weather service broadcast for the destination airport. He did not notice the altitude loss. The pilot decided to go to an alternate airport, turned for the alternate, and descended during the turn. At that point he noticed the altitude loss, pulled back on the yoke, and impacted a cornfield. The pilot reported no mechanical malfunctions with the airplane during the accident flight. The pilot's safety recommendation was "haze is deceptive."

Aircraft

Registration
N16235
Reported as
Cessna 150L
Category
Airplane
Serial number
15073562
Airframe hours
5,331
Engine
Continental O-200, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Mitchell S. Pratt
Registered owner
Katy Flying Club Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · December 1, 2007
Departed
MHE · Mitchell, SD
Destination
ATY · Watertown, SD

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
45
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
May 1, 2008
Seat
Left
Flight hours
175 total · 168 in this make and model · 136 as pilot in command · 14 in the last 90 days · 5 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Night

FAA reports on this event · 1

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