Casualties unknown

Engine failure after takeoff due to fuel pump seal failure (N1642H)

St. Augustine, FL, US

On February 17, 1984, a Piper PA-28R-201T (registration N1642H) was involved in an aviation accident near St. Augustine, FL. Investigators recorded the probable cause as: The failure of the engine fuel pump due to a hardened and shattered O-ring seal. 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 2026-06-23Data APIEditorial standards

A pilot reported partial engine power loss shortly after becoming airborne and attempted to return to the field but missed the runway.

What happened

The pilot reported that the engine lost partial power shortly after the aircraft became airborne. He attempted to return to the field and land on runway 24, but he missed the runway and landed hard north of the runway.

The investigation

Disassembly of the engine fuel pump revealed that the O-ring sealing the aneroid housing to the variable orifice body had hardened and shattered.

Probable cause

The failure of the engine fuel pump due to a hardened and shattered O-ring seal.

Frequently asked questions

What happened in the 17 Feb 1984 Piper PA-28R-201T accident near St. Augustine, FL?

A pilot reported partial engine power loss shortly after becoming airborne and attempted to return to the field but missed the runway.

What aircraft was involved and where did it happen?

The accident on 17 Feb 1984 involved a Piper PA-28R-201T, registration N1642H, at St. Augustine, FL.

What was the probable cause of the accident?

The failure of the engine fuel pump due to a hardened and shattered O-ring seal.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X38855. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.