No fatalities

In-Flight Engine Fire Extinguished After Landing in Sparta, Tennessee (N4105Q)

Sparta, TN, US

On May 20, 1997, a Piper PA-31-350 (registration N4105Q) operated by Brad Mulzer was involved in an aviation accident near Sparta, TN. No fatalities were reported. Investigators recorded the probable cause as: A fire in the left engine started by a leak in the fuel pump. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

An airplane experienced an in-flight fire in the left engine, first noticed upon touchdown. All six occupants safely evacuated and used a hand-held fire extinguisher. The engine sustained substantial damage; a fuel pump leak possibly due to faulty gasket material is suspected.

Incident Overview

A pilot and five passengers safely evacuated an airplane after an in-flight fire in the left engine was first noticed upon landing at an unspecified location in Sparta, Tennessee. Following the evacuation, the occupants used a hand-held fire extinguisher to put out the fire.

Damage Details

The airplane incurred substantial damage to the left engine, including a buckled firewall, melted fuel lines, and separated throttle and propeller cables. The extent of damage indicates a significant thermal event.

Investigation Findings

Further examination of the engine revealed that the fuel pump had a leak. This leak was possibly precipitated by faulty gasket material, which allowed fuel to ignite when it came into contact with the heated engine. In response to this finding, the pump manufacturer has released a Service Bulletin urging a close inspection of the attaching screws.

Frequently asked questions

What happened in the 20 May 1997 Piper PA-31-350 accident near Sparta, TN?

An airplane experienced an in-flight fire in the left engine, first noticed upon touchdown. All six occupants safely evacuated and used a hand-held fire extinguisher. The engine sustained substantial damage; a fuel pump leak possibly due to faulty gasket material is suspected.

Were there any fatalities in the 20 May 1997 Piper PA-31-350 accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 20 May 1997 involved a Piper PA-31-350, registration N4105Q, operated by Brad Mulzer, at Sparta, TN.

What was the probable cause of the accident?

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

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001208X07856. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.