Upper Cumberland Regional Airport
Aircraft Accident/Incident Report

Sparta, Tennessee 38583
Tuesady, May 20, 1997 14:15 CDT

NTSB Narrative Summary Released at Completion of Accident

The airplane experienced an in-flight fire in the left engine that was first noticed by the pilot upon touchdown in Sparta, Tennessee. The pilot and his five passengers safely evacuated the airplane, and then used a hand-held fire extinguisher to put out the fire. The airplane incurred substantial damage to the left engine, including a buckled firewall, melted fuel lines, and separated throttle and propeller cables. Further examination of the engine revealed that the fuel pump had a leak, possibly precipitated by faulty gasket material, which allowed the fuel to ignite when in contact with the heated engine. A Service Bulletin has been released by the pump manufacturer urging close inspection of the attaching screws.

NTSB Probable Cause Narrative

A fire in the left engine started by a leak in the fuel pump.

Event Information

Type of Event Accident
Event Date 5/20/1997
Event Day of the Week Tuesday
Time of Event 1415
Event Time Zone Central Daylight Time
Event City SPARTA
Event State TENNESSEE
Event Country --
Zipcode of the event site 38583
Event Date Year 1997
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport UPPER CUMBERLAND REGIONAL
Event Location Nearest Airport ID SRB
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 1
Degrees magnetic from airport 235
Airport Elevation 1025
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1450 Central Daylight Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID CSV
Elevation of weather observation facility 1881
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 2800
Lowest Non-Ceiling Height 2000
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) 10
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 1500
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 6
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 227
NTSB Notification Source --
NTSB Notification Date Jun 3 1997 12:00AM
NTSB Notification Time 900
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:16PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4105Q
NTSB Number ATL97LA078
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-31-350
Aircraft Series Identifier PA-31-350
Aircraft Serial Number 31-8252029
Certified Max Gross Weight 7045
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 8
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 7 1997 12:00AM
Airframe hours since last inspection 30
Airframe Hours 3277
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MULZER CRUSHED STONE
Aircraft Owner Street Address PO BOX 249
Aircraft Owner City TELL CITY
Aircraft Owner State IN
Aircraft Owner Country
Aircraft Owner Zipcode 47586
Operator is an individual? --
Operator Name BRAD MULZER
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address R.R. 1 BOX 159AA
Operator City LAMAR
Operator State IN
Operator Country
Operator Zip code 47550
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 SRQ
Departure City SARASOTA
Departure State FL
Departure Country
Departure Time 1220
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code HNB
Destination City HUNTINGBURG
Destination State IN
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 4
Runway Length 5003
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --