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Aviation safety reports, made easier to study

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August 17, 1991 · Weyerts RANS S-10 · N35PR

Stanwood, WA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
August 17, 1991
Injury Outcomes
1 injury (1 fatality)
Location
Stanwood, WA
Aircraft
Weyerts RANS S-10
Tail Number
N35PR
Operator
Raymond H Weyerts
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
SEA91LA210

THE PILOT OF THE SINGLE ENGINE HOMEBUILT AIRCRAFT WAS ON A RECREATIONAL FLIGHT DURING WHICH THE ONLY EYEWITNESS REPORTED HEARING THE AIRCRAFT'S ENGINE 'SPUTTERING' AND 'REVVING'. THE WITNESS REPORTED THE AIRCRAFT IN LEVEL FLIGHT AT 300-400 FEET ALTITUDE. THE AIRCRAFT CRASHED IN AN OPEN GRASSY FIELD. ONE BLADE OF THE WOODEN PROPELLER WAS OBSERVED SEPARATED WITH THE REMAINING BLADE STILL ATTACHED TO THE ENGINE AND RELATIVELY UNDAMAGED. UPWARD AND DOWNWARD AFT BENDING DEFORMATION WAS EVIDENT ON THE RIGHT AND LEFT WINGTIPS RESPECTIVELY AT THE ACCIDENT SITE. THE PILOT WAS UNABLE TO RECALL THE ACCIDENT SCENARIO AND EXPIRED 7 DAYS AFTER THE ACCIDENT.

NTSB Probable Cause

AN UNDETERMINED LOSS OF ENGINE POWER AND THE PILOT'S ALLOWING THE AIRSPEED TO DECELERATE BELOW THE STALL SPEED DURING THE SUBSEQUENT FORCED LANDING.

Full Narrative

THE PILOT OF THE SINGLE ENGINE HOMEBUILT AIRCRAFT WAS ON A RECREATIONAL FLIGHT DURING WHICH THE ONLY EYEWITNESS REPORTED HEARING THE AIRCRAFT'S ENGINE 'SPUTTERING' AND 'REVVING'. THE WITNESS REPORTED THE AIRCRAFT IN LEVEL FLIGHT AT 300-400 FEET ALTITUDE. THE AIRCRAFT CRASHED IN AN OPEN GRASSY FIELD. ONE BLADE OF THE WOODEN PROPELLER WAS OBSERVED SEPARATED WITH THE REMAINING BLADE STILL ATTACHED TO THE ENGINE AND RELATIVELY UNDAMAGED. UPWARD AND DOWNWARD AFT BENDING DEFORMATION WAS EVIDENT ON THE RIGHT AND LEFT WINGTIPS RESPECTIVELY AT THE ACCIDENT SITE. THE PILOT WAS UNABLE TO RECALL THE ACCIDENT SCENARIO AND EXPIRED 7 DAYS AFTER THE ACCIDENT.

Flight

Event TypeAccident
Event Time10:20 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftWeyerts RANS S-10
Tail NumberN35PR
Aircraft CategoryAir
DamageDestroyed
OperatorRaymond H Weyerts
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · 532 · Reciprocating
Seats2

People & Injuries

Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 56 · Third Class

Conditions

ConditionsVMC
LightDaylight
Wind240° @ 7 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point0 C / 0 C
Altimeter0
Observation Time17:59
Weather SourceWFAC

Appendix: Source Data