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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

May 13, 1985 · Cessna 207A · N9943M

Cape Simpson, AK

Overview

Report Status

Preliminary report

Event Type

Incident

Date

May 13, 1985

Injury Outcomes

No injuries (7 uninjured)

Location

Cape Simpson, AK

Aircraft

Cessna 207A

Tail Number

N9943M

Operator

Barrow Air

Injuries

None

Aircraft Damage

Minor

NTSB Number

ANC85IA083

# 6 CYL EXPLODED IN FLT DUE TO CONNECTING ROD COMING APART. POST-ACCIDENT INSP REVEALED THAT NUT HAD BACK OFF DUE TO INADEQUATE TORQUE & NO COTTER KEY INSTALLED IN NUT.

Full Narrative

# 6 CYL EXPLODED IN FLT DUE TO CONNECTING ROD COMING APART. POST-ACCIDENT INSP REVEALED THAT NUT HAD BACK OFF DUE TO INADEQUATE TORQUE & NO COTTER KEY INSTALLED IN NUT.

Flight

Event TypeIncident

Event Time12:00 AKDT

Nearest Airport0nm N

Runway0

Flight Plan FiledVFR

Aircraft FireNo

Aircraft ExplosionNo

Aircraft

AircraftCessna 207A

Tail NumberN9943M

Aircraft CategoryAir

DamageMinor

OperatorBarrow Air

Operating RulePart 135

Engines1

Engine TypeReciprocating

Engine DetailsContinental · IO-520-F · Reciprocating · 300

Seats7

People & Injuries

Injury SummaryNo injuries (7 uninjured)

Fatal0

Serious0

Minor0

Uninjured7

Total7

Crew 1Age 26 · First Class

Conditions

ConditionsVMC

LightDaylight

Wind30° @ 12 kt

Visibility50 sm

CeilingNone

Temperature / Dew Point10 C / 3 C

Altimeter29.00 inHg

Observation Time14:53

Weather SourceWFAC

500 – Data service is offline

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May 13, 1985 · Cessna 207A · N9943M

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