Aircraft Accident/Incident Report

Anchorage, Alaska 99513
Monday, July 18, 1994 12:45 AKD

NTSB Narrative Summary Released at Completion of Accident

THE THROTTLE CONTROL LEVER ARM USED TO ATTACH THE BALL BEARING TYPE THROTTLE ROD END TO THE CARBURETOR WORE COMPLETELY THROUGH. THE SIDE WALLS OF THE LEVER THAT WERE ADJACENT TO THE BOLT HOLE WERE SCORED AND REPLICATED THE DIMENSIONS OF THE WASHERS THAT WERE USED ON THE BOLT AND NUT SIDE OF THE LEVER. THE BOLT AND WASHERS THAT WERE USED TO CONNECT THE CABLE END TO THE LEVER WERE NOT APPROVED FOR THE APPLICATION. THE PLANE WAS INSPECTED 35 HOURS PRIOR TO THE ACCIDENT.

NTSB Probable Cause Narrative

THE FAILURE OF THE THROTTLE CONTROL LEVER ARM AS A RESULT OF THE IMPROPER 100 HOUR INSPECTION BY COMPANY MAINTENANCE PERSONNEL.

Event Information

Type of Event Accident
Event Date 7/18/1994
Event Day of the Week Monday
Time of Event 1245
Event Time Zone --
Event City ANCHORAGE
Event State ALASKA
Event Country --
Zipcode of the event site 99513
Event Date Year 1994
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Pilot
Time of the weather observation 1130 Atlantic Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID ENA
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation ADT
Lighting Conditions Day
Lowest Ceiling Height 5000
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 35
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 90
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 10
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 862
NTSB Notification Source --
NTSB Notification Date Jul 18 1994 12:00AM
NTSB Notification Time 2115
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 11:39AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4685F
NTSB Number ANC94LA088
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
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 P206A-0285
Certified Max Gross Weight 3500
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 100 Hour
Date of Last Inspection Jul 7 1994 12:00AM
Airframe hours since last inspection 35
Airframe Hours 2291
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name DELEO, DENNIS M.
Aircraft Owner Street Address 13851 DAVIS ROAD
Aircraft Owner City ANCHORAGE
Aircraft Owner State AK
Aircraft Owner Country
Aircraft Owner Zipcode 99516
Operator is an individual? --
Operator Name
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 13851 DAVIS ROAD
Operator City ANCHORAGE
Operator State AK
Operator Country
Operator Zip code 99516
Operator Code DMWC
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1215
Departure Time Zone ADT
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 Cruise
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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --