No fatalities

Engine Power Loss Leads to Forced Landing and Nose Gear Collapse (N734TU)

Bristol, NH, US

On July 2, 1994, a Cessna 172N (registration N734TU) operated by Emerson Aviation, Inc. was involved in an aviation accident near Bristol, NH. No fatalities were reported. Investigators recorded the probable cause as: the failure of maintenance personnel to remove an object from the carburetor heat duct during annual inspection which blocked induction air and resulted in the loss of engine power, and the subsequent collision with the terrain during a forced landing. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 1 related events involving the same aircraft type or operator are linked below.

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

During a commercial sightseeing flight, the pilot experienced a loss of engine power. A forced landing was initiated; on landing roll, the nose gear collapsed, damaging the firewall. An FAA inspector found a rag obstructing the carburetor heat ducting.

Incident Overview

A pilot conducting a commercial sightseeing flight reported a loss of engine power while in cruise. Attempts to restore engine power were unsuccessful. The pilot initiated a forced landing to a field.

Forced Landing and Damage

During the landing roll, the nose gear collapsed, resulting in damage to the firewall. The airplane had completed its third flight since an annual inspection prior to the incident.

Post-Incident Examination

An FAA inspector examined the engine and discovered a rag within the carburetor heat ducting. The presence of the rag was noted as a foreign object obstruction in the induction system.

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Frequently asked questions

What happened in the 2 Jul 1994 Cessna 172N accident near Bristol, NH?

During a commercial sightseeing flight, the pilot experienced a loss of engine power. A forced landing was initiated; on landing roll, the nose gear collapsed, damaging the firewall. An FAA inspector found a rag obstructing the carburetor heat ducting.

Were there any fatalities in the 2 Jul 1994 Cessna 172N accident?

No fatalities were recorded in this accident.

What aircraft was involved and where did it happen?

The accident on 2 Jul 1994 involved a Cessna 172N, registration N734TU, operated by Emerson Aviation, Inc., at Bristol, NH.

What was the probable cause of the accident?

the failure of maintenance personnel to remove an object from the carburetor heat duct during annual inspection which blocked induction air and resulted in the loss of engine power, and the subsequent collision with the terrain during a forced landing.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001206X01828. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.