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Casualties unknown

Engine Power Loss After Carburetor Float Stuck Leads to Tree Collision (N63483)

Sussex, NJ, US

On July 22, 2007, a Cessna 172P (registration N63483) operated by James R Darrah was involved in an aviation accident near Sussex, NJ. Investigators recorded the probable cause as: A loss of engine power for undetermined reasons. 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

While at 4,000 feet, the engine lost power to 500 rpm. An emergency landing attempt in a field resulted in collision with trees. Investigation found a stuck carburetor float and open needle valve, and a recent carburetor overhaul.

Accident Sequence

The aircraft was in flight at an altitude of 4,000 feet above ground level when the engine began to sputter. Engine power decreased to 500 rpm. The pilot attempted to execute an emergency landing in an open field. The airplane subsequently collided with trees.

Examination Findings

An inspection of the carburetor after the accident revealed that the carburetor float was stuck in the down position, and the needle valve was in the full open position. The float assembly was disassembled to free the needle valve. After reassembly, the carburetor appeared to function normally when tested.

Maintenance History

A review of the aircraft's logbooks indicated that on June 12, 2007, an overhauled carburetor was installed on the engine. At that time, the idle speed and mixture settings were adjusted. The engine was test run after the installation, and no anomalies were noted.

Frequently asked questions

What happened in the 22 Jul 2007 Cessna 172P accident near Sussex, NJ?

While at 4,000 feet, the engine lost power to 500 rpm. An emergency landing attempt in a field resulted in collision with trees. Investigation found a stuck carburetor float and open needle valve, and a recent carburetor overhaul.

What aircraft was involved and where did it happen?

The accident on 22 Jul 2007 involved a Cessna 172P, registration N63483, operated by James R Darrah, at Sussex, NJ.

What was the probable cause of the accident?

A loss of engine power for undetermined reasons.

More accident analyses

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20070803X01096. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.