2 fatalities

Vertical Crash During Pipeline Patrol Demonstration Flight (N1393R)

Maljamar, NM, US

On June 2, 1988, a Gulfstream American AA-5A (registration N1393R) was involved in an aviation accident near Maljamar, NM. 2 people were killed. Investigators recorded the probable cause as: The pilot's failure to maintain adequate airspeed during a slow flight demonstration turn, which resulted in an aerodynamic stall and subsequent impact with the ground. 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 2026-06-19Data APIEditorial standards

An aircraft crashed in a vertical attitude during a low-level oil pipeline patrol demonstration flight, resulting in the destruction of the plane and fatal injuries to both occupants.

What happened

The accident occurred while the aircraft was conducting a slow flight maneuver at a low altitude. The purpose of the flight was a demonstration for an oil pipeline patrol operation. During this phase of the mission, the pilot initiated a left turn. According to witness accounts, the nose of the aircraft suddenly dropped during the maneuver. The aircraft then impacted the ground in a vertical attitude.

The investigation

Post-accident examination of the wreckage revealed that the aircraft was destroyed upon impact. Investigators specifically looked for mechanical issues but found no evidence suggesting an in-flight failure or malfunction of the aircraft systems prior to the crash. There was no fire associated with the accident.

Findings

The flight path and witness descriptions indicate a loss of control during a low-speed turn. The sudden nose drop suggests a rapid descent that prevented recovery before impact. Both occupants on board sustained fatal injuries. No other parties were harmed, and there were no reports of property damage beyond the aircraft itself.

Safety message

This incident highlights the risks associated with slow flight operations at low altitudes, particularly during demonstration flights where maneuvering may be required. Maintaining adequate airspeed and altitude margins is critical to prevent loss of control.

Probable cause

The pilot's failure to maintain adequate airspeed during a slow flight demonstration turn, which resulted in an aerodynamic stall and subsequent impact with the ground.

Frequently asked questions

What happened in the 2 Jun 1988 Gulfstream American AA-5A accident near Maljamar, NM?

An aircraft crashed in a vertical attitude during a low-level oil pipeline patrol demonstration flight, resulting in the destruction of the plane and fatal injuries to both occupants.

Were there any fatalities in the 2 Jun 1988 Gulfstream American AA-5A accident?

The accident was fatal, resulting in 2 fatalities.

What aircraft was involved and where did it happen?

The accident on 2 Jun 1988 involved a Gulfstream American AA-5A, registration N1393R, at Maljamar, NM.

What was the probable cause of the accident?

The pilot's failure to maintain adequate airspeed during a slow flight demonstration turn, which resulted in an aerodynamic stall and subsequent impact with the ground.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X25915. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.