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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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NTSB Report

August 27, 1983 · Cessna A188B · N9172R

Samson, AL

Overview

Report Status
Preliminary report
Event Type
Accident
Date
August 27, 1983
Injury Outcomes
No injuries (1 uninjured)
Location
Samson, AL
Aircraft
Cessna A188B
Tail Number
N9172R
Operator
Ag Flying Service
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL83LA341

THE ACFT COLLIDED WITH A DIRT BANK DURING A FORCED LANDING AFTER AN INFLT POWER LOSS. THE PILOT WAS ENROUTE TO A FIELD AT ABOUT 500 FT AGL WHEN THE POWER LOSS OCCURRED. THE PILOT DID NOT JETTISON HIS LOAD OF CHEMICALS. HE LANDED ON WET GRASS AND WAS UNABLE TO STOP IN TIME TO AVOID THE EMBANKMENT. THE ENGINE WAS EXAMINED AFTER THE ACCIDENT. THE CRANKSHAFTWAS BROKEN BETWEEN THE #3 MAIN JOURNAL AND THE #3 CONNECTING ROD JOURNAL. THE #3 MAIN BEARINGS WERE WORN AND HAD BEEN ROTATING ON THE CRANKSHAFT. THE FRACTURED SURFACE OF THE CRANKSHAFT APPEARED TO CONTAIN FATIGUE RELATED MARKINGS. THE ENGINE HAD BEEN OPERATING 2160 HOURS, 877 SINCE OVERHAUL. THE OWNERS KNOW OF NO HISTORY OF PROPELLER GROUND STRIKES.

Full Narrative

THE ACFT COLLIDED WITH A DIRT BANK DURING A FORCED LANDING AFTER AN INFLT POWER LOSS. THE PILOT WAS ENROUTE TO A FIELD AT ABOUT 500 FT AGL WHEN THE POWER LOSS OCCURRED. THE PILOT DID NOT JETTISON HIS LOAD OF CHEMICALS. HE LANDED ON WET GRASS AND WAS UNABLE TO STOP IN TIME TO AVOID THE EMBANKMENT. THE ENGINE WAS EXAMINED AFTER THE ACCIDENT. THE CRANKSHAFTWAS BROKEN BETWEEN THE #3 MAIN JOURNAL AND THE #3 CONNECTING ROD JOURNAL. THE #3 MAIN BEARINGS WERE WORN AND HAD BEEN ROTATING ON THE CRANKSHAFT. THE FRACTURED SURFACE OF THE CRANKSHAFT APPEARED TO CONTAIN FATIGUE RELATED MARKINGS. THE ENGINE HAD BEEN OPERATING 2160 HOURS, 877 SINCE OVERHAUL. THE OWNERS KNOW OF NO HISTORY OF PROPELLER GROUND STRIKES.

Flight

Event TypeAccident
Event Time06:30 CDT
Nearest Airport4nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftCessna A188B
Tail NumberN9172R
Aircraft CategoryAir
DamageSubstantial
OperatorAg Flying Service
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-D · Reciprocating · 300
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 26 · Second Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility5 sm
CeilingBroken clouds 2000 ft
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO

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Appendix: Source Data