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NTSB Report
June 30, 1990 · Grumman G21 · N7811
King Salmon, AK
Overview
Report Status
Probable Cause
Event Type
Accident
Date
June 30, 1990
Injury Outcomes
1 injury (1 minor injury), 1 uninjured
Location
King Salmon, AK
Aircraft
Grumman G21
Tail Number
N7811
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
ANC90LA102
THE PILOT REPORTED DIRECTIONAL CONTROL PROBLEMS WHILE LANDING IN A CROSSWIND OF 70-80 DEGREES AT 15 KNOTS OR GREATER. THE AIRPLANE TOUCHED DOWN IN THE CENTER OF THE RUNWAY, BUT QUICKLY VEERED TO THE LEFT AND WENT OFF THE RUNWAY. AN AIR TRAFFIC CONTROLLER WHO WITNESSED THE ACCIDENT SAID THAT IT APPEARED THAT A GUST OF WIND CAUSED THE RIGHT WING TO RISE SHORTLY AFTER LANDING, AND THAT THE AIRPLANE THEN VEERED TO THE LEFT. AN EXAMINATION OF THE LEFT MAIN LANDING GEAR, TIRE, AND BRAKE ASSEMBLY DISCLOSED NO ANOMALIES WITH ANY OF THE SYSTEMS OR STRUCTURE.
NTSB Probable Cause
THE PILOT FAILED TO ADEQUATELY COMPENSATE FOR THE PREVAILING WIND CONDITIONS AND HIS FAILURE TO MAINTAIN DIRECTIONAL CONTROL. A CONTRIBUTING FACTOR WAS THE STRONG CROSSWIND COMPONENT.
Full Narrative
THE PILOT REPORTED DIRECTIONAL CONTROL PROBLEMS WHILE LANDING IN A CROSSWIND OF 70-80 DEGREES AT 15 KNOTS OR GREATER. THE AIRPLANE TOUCHED DOWN IN THE CENTER OF THE RUNWAY, BUT QUICKLY VEERED TO THE LEFT AND WENT OFF THE RUNWAY. AN AIR TRAFFIC CONTROLLER WHO WITNESSED THE ACCIDENT SAID THAT IT APPEARED THAT A GUST OF WIND CAUSED THE RIGHT WING TO RISE SHORTLY AFTER LANDING, AND THAT THE AIRPLANE THEN VEERED TO THE LEFT. AN EXAMINATION OF THE LEFT MAIN LANDING GEAR, TIRE, AND BRAKE ASSEMBLY DISCLOSED NO ANOMALIES WITH ANY OF THE SYSTEMS OR STRUCTURE.
Flight
Event TypeAccident
Event Time16:52 AKDT
Nearest AirportKing Salmon (0nm N)
Runway11
Runway Length8500 ft
Runway Width150 ft
Flight Plan FiledCvfr
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman G21
Tail NumberN7811
Aircraft CategoryAir
DamageSubstantial
Engines2
Engine TypeReciprocating
Engine DetailsP&W · R-985 · Reciprocating · 450
Seats3
People & Injuries
Injury Summary1 injury (1 minor injury), 1 uninjured
Fatal0
Serious0
Minor1
Uninjured1
Total2
Crew 1Age 36 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind190° @ 15 kt
Visibility65 sm
CeilingNone
Temperature / Dew Point46
Altimeter29.00 inHg
Observation Time20:05
Weather SourceWFAC