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NTSB Report
July 4, 1987 · Cessna 150G · N3736J
Vashon, WA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
July 4, 1987
Injury Outcomes
2 injuries (2 fatalities)
Location
Vashon, WA
Aircraft
Cessna 150G
Tail Number
N3736J
Operator
Flight Tech
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
SEA87FA129
AIRCRAFT DEPARTED ON A ROUTINE INSTRUCTIONAL FLIGHT. RADAR TRACK INDICATED AIRCRAFT ENGAGING IN MANEUVERS TYPICAL OF INSTRUCTIONAL HIGH WORK (STALLS/TURN/SLOW FLIGHT) FOLLOWED BY LEFT ORBIT ABOUT GRASS AIRSTRIP USED ONLY FOR PRACTICE EMERGENCY LANDING PROCEDURES. WITNESSES REPORTED HEARING SOUND OF POWER CESSATION & OBSERVED AIRCRAFT MANEUVERING ABOUT AIRSTRIP. LAST RADAR TARGET SHOWED AIRCRAFT ABEAM FIELD AND NORTHBOUND STILL ENGAGED IN COUNTERCLOCKWISE TURN. ACCIDENT SITE WAS LOCATED 390 FEET NORTH OF APPROACH END AND SLIGHTLY ACROSS EXTENDED CENTERLINE INDICATING AN OVERSHOOT. FLAPS WERE FOUND FULLY RETRACTED. CRASH DYNAMICS INDICATED A LOW ENERGY LEFT STALL/SPIN INTO GROUND. STUDENT HAD FLOWN ONLY ONCE IN PREVIOUS 117 DAYS (WITH ANOTHER INSTRUCTOR & IN A DIFFERENT LOCALE).
Full Narrative
AIRCRAFT DEPARTED ON A ROUTINE INSTRUCTIONAL FLIGHT. RADAR TRACK INDICATED AIRCRAFT ENGAGING IN MANEUVERS TYPICAL OF INSTRUCTIONAL HIGH WORK (STALLS/TURN/SLOW FLIGHT) FOLLOWED BY LEFT ORBIT ABOUT GRASS AIRSTRIP USED ONLY FOR PRACTICE EMERGENCY LANDING PROCEDURES. WITNESSES REPORTED HEARING SOUND OF POWER CESSATION & OBSERVED AIRCRAFT MANEUVERING ABOUT AIRSTRIP. LAST RADAR TARGET SHOWED AIRCRAFT ABEAM FIELD AND NORTHBOUND STILL ENGAGED IN COUNTERCLOCKWISE TURN. ACCIDENT SITE WAS LOCATED 390 FEET NORTH OF APPROACH END AND SLIGHTLY ACROSS EXTENDED CENTERLINE INDICATING AN OVERSHOOT. FLAPS WERE FOUND FULLY RETRACTED. CRASH DYNAMICS INDICATED A LOW ENERGY LEFT STALL/SPIN INTO GROUND. STUDENT HAD FLOWN ONLY ONCE IN PREVIOUS 117 DAYS (WITH ANOTHER INSTRUCTOR & IN A DIFFERENT LOCALE).
Flight
Event TypeAccident
Event Time17:53 PDT
Nearest AirportWax Orchards (0nm N)
Runway0
Runway Length2200 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftCessna 150G
Tail NumberN3736J
Aircraft CategoryAir
DamageDestroyed
OperatorFlight Tech
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-200A · Reciprocating · 100
Seats2
People & Injuries
Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 20 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind200° @ 6 kt
Visibility20 sm
CeilingBroken clouds 2800 ft
Temperature / Dew Point19 C / 63 F
Altimeter29.00 inHg
Observation Time00:51
Weather SourceWFAC