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NTSB Report
July 24, 1991 · Cessna 206 · N8295Q
Cube Cove, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
July 24, 1991
Injury Outcomes
No injuries (2 uninjured)
Location
Cube Cove, AK
Aircraft
Cessna 206
Tail Number
N8295Q
Operator
Silver Bay Logging
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC91LA106
DURING THE LANDING ROLL, THE PILOT APPLIED FULL BRAKES. THE PILOT THEN LOST DIRECTIONAL CONTROL AND THE AIRPLANE NOSED OVER ON ITS BACK. EXAMINATION OF THE BRAKE SYSTEM REVEALED A STRESS CRACK UNDER THE SLEEVE WHICH CAUSED A COMPLETE LOSS OF BRAKE FLUID WHEN THE BRAKES WERE APPLIED BY THE PILOT.
NTSB Probable Cause
A COMPLETE FAILURE OF THE BRAKE SYSTEM DUE TO A CRACK IN THE BRAKE LINES. CONTRIBUTING TO THE ACCIDENT WAS THAT THE BRAKES WERE NOT ADEQUATELY MAINTAINED BY COMPANY MAINTENANCE PERSONNEL.
Full Narrative
DURING THE LANDING ROLL, THE PILOT APPLIED FULL BRAKES. THE PILOT THEN LOST DIRECTIONAL CONTROL AND THE AIRPLANE NOSED OVER ON ITS BACK. EXAMINATION OF THE BRAKE SYSTEM REVEALED A STRESS CRACK UNDER THE SLEEVE WHICH CAUSED A COMPLETE LOSS OF BRAKE FLUID WHEN THE BRAKES WERE APPLIED BY THE PILOT.
Flight
Event TypeAccident
Event Time12:00 AKDT
Nearest AirportCUBECOVE (0nm)
Runway18
Runway Length1600 ft
Runway Width50 ft
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 206
Tail NumberN8295Q
Aircraft CategoryAir
DamageSubstantial
OperatorSilver Bay Logging
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-F · Reciprocating · 300
Seats6
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 31 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind360° @ 8 kt
Visibility20 sm
CeilingOvercast 2500 ft
Temperature / Dew Point61 F / 37 C
Altimeter30.00 inHg
Weather SourcePILO