Casualties unknown

Engine Failure During Cruise Flight Leads to Ditching in Gulf of Mexico (N7640P)

Cross City, FL, US

On March 30, 2001, a Piper PA-24 (registration N7640P) was involved in an aviation accident near Cross City, FL. Investigators recorded the probable cause as: The fracture of the crankshaft assembly that resulted in a total loss of engine power. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-10Data APIEditorial standards

During cruise at 6,000 feet, the pilot heard a loud bang, felt a violent shake, and lost engine power. The pilot glided toward shore and ditched the aircraft in the Gulf of Mexico. Subsequently, the connecting rod and bearing sent to the NTSB lab were lost in transit.

Incident Overview

During a routine cruise flight at an altitude of 6,000 feet, approximately two to three miles offshore, the pilot experienced a sudden loud bang accompanied by a violent shake of the aircraft. This event was immediately followed by a loss of engine power.

Sequence of Events

After the loss of engine power, the pilot initiated a glide toward the shore. The pilot then made the decision to ditch the aircraft into the Gulf of Mexico. The aircraft was later recovered from the water.

Post-Incident Actions

Following recovery, the connecting rod and connecting rod bearing were removed from the aircraft and sent via FedEx to the NTSB laboratory for examination on April 18, 2001. However, the NTSB lab never received these parts. Multiple attempts to track the shipment through FedEx were unsuccessful, and the whereabouts of the parts remain unknown.

Investigation Challenges

The loss of the critical engine components in transit has hindered the investigation into the cause of the engine failure. Without the connecting rod and bearing, a detailed metallurgical analysis could not be performed, leaving the precise nature of the failure undetermined.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20010405X00697. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.