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NTSB Report
September 12, 1986 · Cessna 150M · N9250U
Carbonado, WA
Overview
Report Status
Preliminary report
Event Type
Accident
Date
September 12, 1986
Injury Outcomes
2 injuries (2 fatalities)
Location
Carbonado, WA
Aircraft
Cessna 150M
Tail Number
N9250U
Operator
Spanaflight
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
SEA86FA245
THE INSTRUCTOR AND PASSENGER DEPARTED ON EITHER AN INTRODUCTORY FLIGHT, INITIAL INSTRUCTIONAL FLIGHT, (OR COMBINATION THEREOF). DURING THE FLIGHT THE AIRCRAFT WAS FLOWN DOWN A CANYON WHICH THE INSTRUCTOR HAD FLOWN DOWN PREVIOUSLY. AS THE AIRCRAFT APPROACHED TRANSMISSION LINES SPANNING THE CANYON THE AIRCRAFT ENTERED AN UNEXPLAINED ABRUPT NOSE DOWN MANEUVER. THE PILOT IN COMMAND DID NOT/WAS UNABLE TO MAINTAIN ADEQUATE CLEARANCE WITH THE LINES AND COLLISION FOLLOWED. THE AIRCRAFT THEN DESCENDED OUT OF CONTROL TO THE BASE OF THE CANYON.
Full Narrative
THE INSTRUCTOR AND PASSENGER DEPARTED ON EITHER AN INTRODUCTORY FLIGHT, INITIAL INSTRUCTIONAL FLIGHT, (OR COMBINATION THEREOF). DURING THE FLIGHT THE AIRCRAFT WAS FLOWN DOWN A CANYON WHICH THE INSTRUCTOR HAD FLOWN DOWN PREVIOUSLY. AS THE AIRCRAFT APPROACHED TRANSMISSION LINES SPANNING THE CANYON THE AIRCRAFT ENTERED AN UNEXPLAINED ABRUPT NOSE DOWN MANEUVER. THE PILOT IN COMMAND DID NOT/WAS UNABLE TO MAINTAIN ADEQUATE CLEARANCE WITH THE LINES AND COLLISION FOLLOWED. THE AIRCRAFT THEN DESCENDED OUT OF CONTROL TO THE BASE OF THE CANYON.
Flight
Event TypeAccident
Event Time14:39 PDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 150M
Tail NumberN9250U
Aircraft CategoryAir
DamageDestroyed
OperatorSpanaflight
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 23 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind260° @ 3 kt
Visibility30 sm
CeilingNone
Temperature / Dew Point70 F / 43 C
Altimeter29.00 inHg
Observation Time21:57
Weather SourceWFAC