Aircraft Accident/Incident Report

Murfreesboro, Tennessee 37130
Saturday, December 18, 1999 9:17 CST

NTSB Narrative Summary Released at Completion of Accident

The pilot was on approach for landing when the airplane experienced a total loss of engine power, and crashed during a forced landing. Examination of the airframe and engine assembly revealed no evidence of a precrash mechanical failure or malfunction. Visual inspection of the spark plugs revealed very black and sooty. Fuel was present in the flow divider but was not present in the line between the fuel servo and flow divider. The servo fuel injector was removed and examined. The fuel diaphragm had not been replaced. The servo fuel injector was placed in a test bench and a functional test performed. Fuel was pouring out of the venturi causing erratic air flow through the regulator and erratic air flow. The air cover and diaphragm was removed to determine the source of the fuel leak. The fuel diaphragm stem was bent. The center body was removed with the fuel diaphragm attached to the center body bellows. The bottom calibration nut was removed from the fuel diaphragm stem. The fuel diaphragm was removed from the bellows and a leakage check was performed. The bellows was split and air was leaking through the bellows. Appropriate AD's and SB's had not been complied with resulting in an in-flight power loss due to an over rich condition.

NTSB Probable Cause Narrative

The failure of an unknown maintenance person to comply with an Airworthiness Directive (replace center body bellows seal assembly and tube bushings) and Service Bulletin (replace fuel diaphragm) resulting in an in-flight power loss due to an over rich condition caused by the failure of the center body bellows seal assembly, and subsequent forced landing and in-flight collision with terrain.

Event Information

Type of Event Accident
Event Date 12/18/1999
Event Day of the Week Saturday
Time of Event 917
Event Time Zone Central Standard Time
Event City MURFREESBORO
Event State TENNESSEE
Event Country --
Zipcode of the event site 37130
Event Date Year 1999
Event Date Month 12
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 937 Central Standard Time
Direction of event from weather observation facility (degrees) 330
Weather Observation Facility ID MQY
Elevation of weather observation facility 543
Distance of event from weather observation facility (units?) 11
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 1200
Lowest Non-Ceiling Height 0
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) 20
Air Temperature at event time (in degrees celsius) 6
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
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 Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1456
NTSB Notification Source --
NTSB Notification Date Dec 18 1999 12:00AM
NTSB Notification Time 946
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jan 10 2001 10:06AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N627KB
NTSB Number MIA00LA053
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 Swertfeger
Aircraft Model VELOCITY 173 ELITE
Aircraft Series Identifier VELOCITY 1
Aircraft Serial Number DMO 375
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 88
Airframe Hours 87
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name KENNETH W. SWERTFEGER
Aircraft Owner Street Address 1617 PARK STREET SOUTH EAST
Aircraft Owner City DECATUR
Aircraft Owner State AL
Aircraft Owner Country
Aircraft Owner Zipcode 35601
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code DCU
Departure City DECATUR
Departure State AL
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt crash at destination city
Destination Airport Code MBT
Destination City
Destination State
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 10 2001 12:27PM
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 --