Renton Municipal Airport
Aircraft Accident/Incident Report

Renton, Washington 98055
Sunday, February 9, 1986 11:50 PST

NTSB Narrative Summary Released at Completion of Accident

THE RECENTLY CERTIFICATED PRIVATE PILOT WAS ENGAGED IN PRACTICE TOUCH AND GO LANDINGS. SOMETIME AFTER THE SECOND APPROACH THE THROTTLE CONTROL ROD BECAME DISCONNECTED FROM THE THROTTLE CABLE AND THE PILOT WAS UNABLE TO RETARD THE THROTTLE FROM A FULL POWER CONDITION. THE PILOT SUBSEQUENTLY MANEUVERED THE AIRCRAFT BACK TOWARDS THE AIRPORT IN A HIGH SPEED, CLEAN, DESCENDING PROFILE AND OVERSHOT THE FINAL APPROACH EVENTUALLY COLLIDING WITH TREES AND A FENCE SLIGHTLY NORTHWEST OF MIDFIELD. THERE WAS NO APPARENT ATTEMPT BY THE PILOT TO EXECUTE THE STUCK THROTTLE PROCEDURES WHICH HER FLIGHT INSTRUCTOR HAD PREVIOUSLY PROVIDED TO HER WHILE UNDER TRAINING.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 2/9/1986
Event Day of the Week Sunday
Time of Event 1150
Event Time Zone Pacific Standard Time
Event City RENTON
Event State WASHINGTON
Event Country --
Zipcode of the event site 98055
Event Date Year 1986
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport RENTON MUNICIPAL
Event Location Nearest Airport ID RNT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 29
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1149 Pacific Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID RNT
Elevation of weather observation facility 29
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 135
NTSB Notification Source --
NTSB Notification Date Feb 9 1986 12:00AM
NTSB Notification Time 1215
Fiche Number and/or location -used to find docket information 29945
Date of most recent change to record Jan 2 2001 9:14AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N738XX
NTSB Number SEA86FA054
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 172N
Aircraft Series Identifier 172N
Aircraft Serial Number 17270328
Certified Max Gross Weight 2300
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jan 24 1986 12:00AM
Airframe hours since last inspection 32
Airframe Hours 1452
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name DANIEL B. & MARIAN B. HARTLEY
Aircraft Owner Street Address 241 SOUTH 186TH
Aircraft Owner City SEATTLE
Aircraft Owner State WA
Aircraft Owner Country
Aircraft Owner Zipcode 98148
Operator is an individual? --
Operator Name FLIGHT TECH
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 8535 PERIMETER RD.
Operator City SEATTLE
Operator State WA
Operator Country
Operator Zip code 98108
Operator Code
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code BFI
Departure City SEATTLE
Departure State WA
Departure Country
Departure Time 1100
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:36AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 12
Runway Length 5379
Runway Width 200
Sight Seeing flight No
Air Medical Flight No
Medical Flight --