What aircraft was involved and where did it happen?

The accident on 1999-04-14 involved a Lake LA-4-200, registration N959DF, at Pensacola, FL.

Instructional Flight Ends in Runway Excursion After Electrical and Landing Gear Issues (N959DF)

On April 14, 1999, a Lake LA-4-200 (registration N959DF) was involved in an aviation accident near Pensacola, FL. Investigators recorded the probable cause as: The pilot's inability to maintain directional control due to failure of the main landing gear, and partial electrical system failure for undetermined reasons. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.

During an instructional flight, an electrical power drop and unsafe nose gear indication led a bounced landing, veer off runway, collision with a sign, and left main gear collapse.

Electrical System Issue

During an instructional flight, the flightcrew observed that the electrical power was at 10 volts and discharging. In response, they returned to the departure airport for landing.

Landing Gear Problem

When the landing gear was lowered, the flightcrew noticed an unsafe indication for the nose landing gear. During the landing, the aircraft bounced, after which the nose gear locked down.

Landing and Runway Excursion

During the rollout, the aircraft veered to the left and the flightcrew could not control it. The aircraft departed the runway, collided with a sign, and spun around approximately 160 to 170 degrees.

Post-Crash Examination

Post-crash examination revealed no heavy tire marks or aircraft parts on the touchdown area of the runway. The left main landing gear had collapsed and penetrated the wing. The reason for the electrical system failure was not determined.

1999-04-14: Lake LA-4-200 (N959DF) — Pensacola, FL