Sanders Private Airport
Aircraft Accident/Incident Report

Knoxville, Tennessee 37922
Friday, August 27, 1993 17:15 EDT

NTSB Narrative Summary Released at Completion of Accident

DURING CLIMB OUT, THE AIRPLANE EXPERIENCED A REDUCTION IN ENGINE POWER FOLLOWED BY A COMPLETE LOSS OF POWER. THE FLIGHT INSTRUCTOR ASSUMED CONTROL OF THE AIRPLANE AND MADE A FORCED LANDING INTO A WOODED AREA; THE AIRPLANE COLLIDED WITH TREES AND FLIPPED INVERTED. EXAMINATION OF THE AIRCRAFT FUEL SYSTEM REVEALED CORROSIVE MATERIALS IN THE FUEL FLOSCAN TRANSDUCER; CORROSIVE MATERIALS BLOCKED BOTH THE IN AND OUT PORTS. THE TRANSDUCER IS PART OF A SUPPLEMENTAL TYPE CERTIFICATE MODIFICATION THAT MEASURES FUEL FLOW. THE ASSEMBLY IS MOUNTED ON TOP OF THE ENGINE, AND IS THE FINAL COMPONENT IN THE FUEL SYSTEM BEFORE THE FUEL FLOW DIVIDER. ACCORDING TO THE OPERATOR, THE AIRCRAFT HAD NOT BEEN FLOWN IN SEVERAL YEARS. A CURRENT ANNUAL INSPECTION HAD BEEN COMPLETED. HOWEVER, THERE IS NO INSPECTION PROCEDURE FOR THE TRANSDUCER ASSEMBLY.

NTSB Probable Cause Narrative

INADEQUATE ANNUAL INSPECTION PROCEDURES FOR THE FUEL SYSTEM, WHICH RESULTED IN FUEL STARVATION DUE TO BLOCKAGE OF THE FUEL FLOSCAN TRANSDUCER. A FACTOR WAS INSUFFICIENT FAA INSPECTION STANDARDS/REQUIREMENTS.

Event Information

Type of Event Accident
Event Date 8/27/1993
Event Day of the Week Friday
Time of Event 1715
Event Time Zone Eastern Daylight Time
Event City KNOXVILLE
Event State TENNESSEE
Event Country --
Zipcode of the event site 37922
Event Date Year 1993
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SANDERS PRIVATE
Event Location Nearest Airport ID NONE
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 2
Degrees magnetic from airport 270
Airport Elevation 950
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1850 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID TYS
Elevation of weather observation facility 981
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 5000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Unknown
Wind Speed (knots) 11
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1450
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1577
NTSB Notification Source --
NTSB Notification Date Aug 27 1993 12:00AM
NTSB Notification Time 2030
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:33PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7733R
NTSB Number ATL93LA148
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name BEECH
Aircraft Model V35A
Aircraft Series Identifier V35A
Aircraft Serial Number D8874
Certified Max Gross Weight 3400
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 20 1993 12:00AM
Airframe hours since last inspection 5
Airframe Hours 3600
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name BELL CHEMICAL CO. INC,.
Aircraft Owner Street Address 11801 N. MONTICELLO DR.
Aircraft Owner City KNOXVILLE
Aircraft Owner State TN
Aircraft Owner Country
Aircraft Owner Zipcode 37922
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
Operator Code
Owner has at least one certificate None
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) Instructional
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code NONE
Departure City
Departure State
Departure Country
Departure Time 1933
Departure Time Zone EDT
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 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 0
Runway Length 1200
Runway Width 200
Sight Seeing flight No
Air Medical Flight No
Medical Flight --