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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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August 28, 2011 · Cessna 170A · N1238D

Grangeville, ID

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
August 28, 2011
Injury Outcomes
1 injury (1 serious injury)
Location
Grangeville, ID
Aircraft
Cessna 170A
Tail Number
N1238D
Operator
Bokk John
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
WPR11CA409

The pilot of the single-engine airplane stated that he took off from the remote grass airstrip, which had 80-foot-tall pine trees along both sides. Shortly after takeoff the pilot heard a bang and the airplane veered right. The pilot tried to correct the flight path; however, the airplane descended and impacted pine trees about 300 feet east of the departure end of the airstrip. The pilot was able to extract himself from the cockpit before the airplane was consumed by a postaccident fire. A Federal Aviation Administration inspector and the county sheriff inspected the control cables of the airplane and found them all to be connected and continuous between the flight control surfaces and the cockpit controls.

NTSB Probable Cause

Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Directional control-Not attained/maintained - C

Full Narrative

The pilot of the single engine airplane stated that he took off from the remote grass airstrip, which had 80-foot-tall pine trees along both sides of the air strip. Shortly after takeoff the pilot heard a bang and the airplane veered right. The pilot tried to correct the flight path, however, the airplane descended and impacted pine trees about 300 feet east of the departure end of the airstrip. The pilot was able to extract himself from the cockpit before the airplane was consumed by a post accident fire. A Federal Aviation Administration inspector and the county sheriff inspected the control cables of the airplane and found them all connected and continuous between the flight control surfaces and the cockpit controls.

Flight

Event TypeAccident
Event Time07:20 MDT
Nearest AirportHungry Ridge Ranch Airport (0nm)
Runway36
Runway Length1680 ft
Runway Width100 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionNo

Aircraft

AircraftCessna 170A
Tail NumberN1238D
Aircraft CategoryAir
DamageSubstantial
OperatorBokk John
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-A1A · Reciprocating · 180
Seats4

People & Injuries

Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 74 · Third Class · Serious

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point63 F / 46
Altimeter30.07 inHg
Observation Time13:15
Weather SourceWFAC

Appendix: Source Data