SEA91LA087

NTSB accident investigation · Cessna 172H · Coeur D'Alene, ID · April 16, 1991

Accident · Serious injuriesLimited investigationFinal report
Date
April 16, 1991, 13:15 local (20:15 UTC)
Place
Coeur D'Alene, ID
Injuries
1 serious, 1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
CFBETCessna 172H
Weather
Visual (VMC) · Day
Status
Completed · report May 7, 1993
Report
Approved by Office Director
Case key
41414

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 misjudgement of his aircraft's climb capability when flying towards rising terrain. Factors include his lack of familiarity with the geographic area.

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/waterClimb - to cruise
Terrain condition - mountainous/hilly
Terrain condition - rising
Climb - misjudgedPilot in commandCause
Lack of familiarity with geographic areaPilot in commandFactor

Analysis

The pilot of the Cessna 172 floatplane departed couer D'Alene lake in a northeasterly direction, entering a valley that became a canyon, with terrain that rose significantly faster than the aircraft was climbing. The pilot determined that it was too narrow to turn around, and continued climbing until the aircraft struck trees on top of a saddle.

Aircraft

Registration
CFBET
Reported as
Cessna 172H
Category
Airplane
Serial number
17255248
Engine
Lycoming O-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Charles S. Parnell
Registered owner
Charles S. Parnell
Departed
S76 · Brooks Spb, ID
Destination
Flathead Lake, MT
Flight plan
VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
49
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Valid Medical--no waivers/lim.
Flight hours
290 total · 242 in this make and model · 172 as pilot in command · 31 in the last 90 days · 22 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
45° at 15 knots
Visibility
24 statute miles
Lowest ceiling
None