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NTSB Report
September 7, 1991 · Grumman G-44 · N63350
Metaline Falls, WA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
September 7, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Metaline Falls, WA
Aircraft
Grumman G-44
Tail Number
N63350
Operator
Eugene & J Ann Riggs
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA91LA244
THE AMPHIBIOUS AIRCRAFT HAD BEEN LANDED ON THE LAKE AND MOORED CLOSE TO SHORE IN SHALLOW WATER. THE PILOT HAD SET THE PARKING BRAKE WITH THE WHEELS EXTENDED TO STABILIZE THE AIRCRAFT AT THE MOORING SITE. SUBSEQUENTLY, THE AIRCRAFT WAS REPOSITIONED TO A NEARBY AIRSTRIP. THE PARKING BRAKE WAS NOT DISENGAGED PRIOR TO THE TOUCHDOWN AND THE AIRCRAFT NOSED OVER DURING THE LANDING ROLL. THE OPERATOR'S MANUAL DID NOT ADDRESS THE POSSIBILITY OF LANDING WITH THE PARKING BRAKE ENGAGED.
NTSB Probable Cause
THE PILOT'S INADVERTENT USE OF THE PARKING BRAKE. A FACTOR CONTRIBUTING TO THE ACCIDENT WAS THE ABSENCE OF THE PARKING BRAKE ON THE LANDING CHECKLIST.
Full Narrative
THE AMPHIBIOUS AIRCRAFT HAD BEEN LANDED ON THE LAKE AND MOORED CLOSE TO SHORE IN SHALLOW WATER. THE PILOT HAD SET THE PARKING BRAKE WITH THE WHEELS EXTENDED TO STABILIZE THE AIRCRAFT AT THE MOORING SITE. SUBSEQUENTLY, THE AIRCRAFT WAS REPOSITIONED TO A NEARBY AIRSTRIP. THE PARKING BRAKE WAS NOT DISENGAGED PRIOR TO THE TOUCHDOWN AND THE AIRCRAFT NOSED OVER DURING THE LANDING ROLL. THE OPERATOR'S MANUAL DID NOT ADDRESS THE POSSIBILITY OF LANDING WITH THE PARKING BRAKE ENGAGED.
Flight
Event TypeAccident
Event Time14:45 PDT
Nearest AirportSullivan Lake State (0nm N)
Runway16
Runway Length1900 ft
Runway Width150 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftGrumman G-44
Tail NumberN63350
Aircraft CategoryAir
DamageSubstantial
OperatorEugene & J Ann Riggs
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsLycoming · GO-480-B1D · Reciprocating · 270
Seats5
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 45 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind150° @ 10 kt
Visibility20 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Weather SourcePILO