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NTSB Report
June 18, 1983 · Cessna 185 · N3991Q
(N) Skwentna, AK
Overview
Report Status
Preliminary report
Event Type
Accident
Date
June 18, 1983
Injury Outcomes
No injuries (4 uninjured)
Location
(N) Skwentna, AK
Aircraft
Cessna 185
Tail Number
N3991Q
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC83LA099
THE ACFT WAS GROUND LOOPED INTENTIONALLY TO PREVENT A COLLISION WITH PEOPLE OR BOATS. THE PILOT SAID HE HAD NO BRAKING ACTION DURING LANDING. HE BELIEVES SOMEONE LOOSENED THE PLUGS IN THE BOTTOM OF BOTH BRAKE CYLINDERS AND THESE PLUGS DROPPED OUT IN FLIGHT. HE SAID BOTH PLUGS WERE IN PLACE DURING PREFLIGHT AND BRAKING WAS GOOD WHILE TAXING FOR TAKEOFF. THE TAPPED THREADS FOR THOSE PLUGS WERE CLEAN AND SHINY DURING POST-ACCIDENT EXAMINATION.
Full Narrative
THE ACFT WAS GROUND LOOPED INTENTIONALLY TO PREVENT A COLLISION WITH PEOPLE OR BOATS. THE PILOT SAID HE HAD NO BRAKING ACTION DURING LANDING. HE BELIEVES SOMEONE LOOSENED THE PLUGS IN THE BOTTOM OF BOTH BRAKE CYLINDERS AND THESE PLUGS DROPPED OUT IN FLIGHT. HE SAID BOTH PLUGS WERE IN PLACE DURING PREFLIGHT AND BRAKING WAS GOOD WHILE TAXING FOR TAKEOFF. THE TAPPED THREADS FOR THOSE PLUGS WERE CLEAN AND SHINY DURING POST-ACCIDENT EXAMINATION.
Flight
Event TypeAccident
Event Time20:30 AHDT
Nearest AirportLake Creek (0nm N)
Runway9
Runway Length1000 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 185
Tail NumberN3991Q
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-520-D · Reciprocating · 205
Seats4
People & Injuries
Injury SummaryNo injuries (4 uninjured)
Fatal0
Serious0
Minor0
Uninjured4
Total4
Crew 1Age 44 · Third Class
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility20 sm
CeilingNone
Temperature / Dew Point61 F / 30 C
Altimeter0
Weather SourcePILO