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NTSB Report

September 16, 1991 · Cessna 170B · N4693C

Curtis, WA

Overview

Report Status

Probable Cause

Event Type

Accident

Date

September 16, 1991

Injury Outcomes

1 injury (1 fatality)

Location

Curtis, WA

Aircraft

Cessna 170B

Tail Number

N4693C

Operator

Kirkendall Curtis

Injuries

Fatal

Aircraft Damage

Destroyed

NTSB Number

SEA91LA237

THE CESSNA 170B COLLIDED WITH TERRAIN WHILE MANEUVERING DURING A LOW PASS OVER THE AIRSTRIP. WITNESSES STATED THAT THE PILOT APPEARED TO HAVE BEEN ATTEMPTING A ROLL WHEN THE NOSE DROPPED WHILE THE AIRCRAFT WAS INVERTED. THE AIRCRAFT STRUCK THE GROUND IN A NOSE-LOW ATTITUDE. TOXICOLOGICAL SAMPLES REVEALED THAT THE PILOT'S BLOOD ALCOHOL LEVEL WAS .08 GRAMS PER 100 MILLILITER.

NTSB Probable Cause

A MISJUDGED MANEUVER DUE TO PHYSICAL IMPAIRMENT BY ALCOHOL. CONTRIBUTING TO THE ACCIDENT WAS OVERCONFIDENCE IN PERSONAL ABILITY.

Full Narrative

THE CESSNA 170B COLLIDED WITH TERRAIN WHILE MANEUVERING DURING A LOW PASS OVER THE AIRSTRIP. WITNESSES STATED THAT THE PILOT APPEARED TO HAVE BEEN ATTEMPTING A ROLL WHEN THE NOSE DROPPED WHILE THE AIRCRAFT WAS INVERTED. THE AIRCRAFT STRUCK THE GROUND IN A NOSE-LOW ATTITUDE. TOXICOLOGICAL SAMPLES REVEALED THAT THE PILOT'S BLOOD ALCOHOL LEVEL WAS .08 GRAMS PER 100 MILLILITER.

Flight

Event TypeAccident

Event Time18:00 PDT

Nearest AirportCURTIS (0nm N)

Runway0

Flight Plan FiledNone

Aircraft FireGrd

Aircraft ExplosionGrd

Aircraft

AircraftCessna 170B

Tail NumberN4693C

Aircraft CategoryAir

DamageDestroyed

OperatorKirkendall Curtis

Operating RulePart 91

Engines1

Engine TypeReciprocating

Engine DetailsContinental · C-145-2 · Reciprocating · 145

Seats4

People & Injuries

Injury Summary1 injury (1 fatality)

Fatal1

Serious0

Minor0

Uninjured0

Total1

Crew 1Age 67 · Third Class

Conditions

ConditionsVMC

LightDaylight

Wind60° @ 11 kt

Visibility60 sm

CeilingNone

Temperature / Dew Point45 C

Altimeter30.00 inHg

Observation Time00:54

Weather SourceWFAC

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September 16, 1991 · Cessna 170B · N4693C

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