Casualties unknown

Pilot Reports Loss of Control on Base Leg; Aircraft Crashes into Ocean (N1253M)

San Juan, PR, US

On May 8, 1987, a Cessna 337E (registration N1253M) was involved in an aviation accident near San Juan, PR. 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

During base leg with flaps at two-thirds, the aircraft entered an uncontrolled left bank. Control was partially regained before a left spin led to a crash in approximately 23 feet of water.

Incident Description

According to the pilot, the aircraft was on the base leg of the approach with flaps lowered to two-thirds when it unexpectedly entered an uncontrolled left bank. The pilot reported that control was partially regained, but the aircraft subsequently entered a spin to the left. Despite efforts, control could not be reestablished before the aircraft crashed into the ocean.

The aircraft came to rest in approximately 23 feet of water. It has not been recovered.

Investigation Findings

As the aircraft remains unrecovered, investigators were unable to conduct a detailed examination. Consequently, no determination could be made regarding the reason for the loss of control described by the pilot. The investigation has been unable to identify any specific mechanical or operational factors that contributed to the event.

Frequently asked questions

What happened in the 8 May 1987 Cessna 337E accident near San Juan, PR?

During base leg with flaps at two-thirds, the aircraft entered an uncontrolled left bank. Control was partially regained before a left spin led to a crash in approximately 23 feet of water.

What aircraft was involved and where did it happen?

The accident on 8 May 1987 involved a Cessna 337E, registration N1253M, at San Juan, PR.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X30986. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.