Merrill Field Airport
Aircraft Accident/Incident Report

Anchorage, Alaska 99501
Saturday, November 20, 1993 11:15 AST

NTSB Narrative Summary Released at Completion of Accident

AFTER TAKE OFF THE PILOT ATTEMPTED TO REDUCE THE POWER BY RETARDING THE THROTTLE. THE THROTTLE WAS STIFF AND HE APPLIED MORE PRESSURE AND THEN IT JERKED OUT AND HE WAS ONLY ABLE TO MAINTAIN 1000 RPM ON HIS ENGINE. MANIPULATION OF THE THROTTLE DID NOT CHANGE THE RPM. HE WAS FORCED TO LAND ON A TAXIWAY AND THE AIRPLANE STRUCK TWO PARKED VEHICLES DURING THE ROLL OUT. EXAMINATION OF THE AIRPLANE SHOWED THAT THE THROTTLE CABLE HAD FROZEN DUE TO MOISTURE. THE PILOT STATED HE PREHEATED THE ENGINE COMPARTMENT TO A WARM TEMPERATURE.

NTSB Probable Cause Narrative

THE FROZEN THROTTLE CABLE DUE TO MOISTURE.

Event Information

Type of Event Accident
Event Date 11/20/1993
Event Day of the Week Saturday
Time of Event 1115
Event Time Zone Atlantic Standard Time
Event City ANCHORAGE
Event State ALASKA
Event Country --
Zipcode of the event site 99501
Event Date Year 1993
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MERRILL FIELD
Event Location Nearest Airport ID MRI
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 136
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 90
Air Temperature at event time (in degrees celsius) -23
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1196
NTSB Notification Source --
NTSB Notification Date Nov 20 1993 12:00AM
NTSB Notification Time 1145
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:44PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7586Z
NTSB Number ANC94LA019
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 206
Aircraft Series Identifier 206
Aircraft Serial Number 20606371
Certified Max Gross Weight 3600
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 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 28 1993 12:00AM
Airframe hours since last inspection 13
Airframe Hours 4423
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MICHAEL J. YORKE
Aircraft Owner Street Address 3303 WOODLAND PARK DR
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99517
Operator is an individual? --
Operator Name AIRLIFT ALASKA
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2301 MERRILL FIELD DRIVE
Operator City ANCHORAGE
Operator State AK
Operator Country
Operator Zip code 99501
Operator Code HYGA
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) Business
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1110
Departure Time Zone AST
Destination Same as Local Flt --
Destination Airport Code
Destination City CANTWELL
Destination State AK
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 15
Runway Length 3000
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --