Casualties unknown

Partial Power Loss During Takeoff Results in Forced Landing (N525Z)

Tulsa, OK, US

On July 31, 2001, a Piper PA-28 (registration N525Z) was involved in an aviation accident near Tulsa, OK. Investigators recorded the probable cause as: The partial loss of engine power during initial climb could not be determined due to insufficient evidence. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 4 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-21Data APIEditorial standards

A light aircraft experienced a partial loss of engine power during initial climb, forcing the pilot to execute an emergency landing in rough terrain with no injuries reported.

What happened

During the initial phase of takeoff and climb, the aircraft encountered a sudden reduction in engine performance. At an altitude between 100 and 150 feet above ground level, the engine lost partial power. Recognizing the critical nature of the situation, the pilot initiated a gradual turn to align with a suitable landing area. The pilot prepared for a forced landing as the aircraft descended toward the ground.

The airplane subsequently impacted rough and uneven terrain. Upon impact, the aircraft came to rest in an area characterized by thick brush. There were no reports of injuries or fatalities associated with this incident. The pilot managed to control the descent until impact, but the rough ground conditions likely contributed to the severity of the damage sustained by the airframe.

The investigation

Investigative efforts focused on determining the root cause of the mechanical failure observed during flight. Investigators examined the engine and related systems for signs of malfunction or external interference. Despite a thorough review of the available evidence, the specific reason for the partial loss of engine power was not determined. No definitive mechanical fault was identified that could explain the power reduction.

Findings

The primary finding relates to the unexplained nature of the power loss. While the pilot's actions were appropriate for the emergency situation, the underlying cause remains unknown. The investigation concluded without identifying a specific component failure or operational error responsible for the event. This highlights the challenges in diagnosing intermittent mechanical issues that occur during critical flight phases.

Safety message

Pilots should remain vigilant during takeoff and initial climb, as these are critical phases of flight where engine performance is paramount. Understanding emergency procedures for partial power loss is essential for minimizing risks associated with such events.

Probable cause

The partial loss of engine power during initial climb could not be determined due to insufficient evidence.

All Piper PA-28 Cherokee accidents →

Frequently asked questions

What happened in the 31 Jul 2001 Piper PA-28 accident near Tulsa, OK?

A light aircraft experienced a partial loss of engine power during initial climb, forcing the pilot to execute an emergency landing in rough terrain with no injuries reported.

What aircraft was involved and where did it happen?

The accident on 31 Jul 2001 involved a Piper PA-28, registration N525Z, at Tulsa, OK.

What was the probable cause of the accident?

The partial loss of engine power during initial climb could not be determined due to insufficient evidence.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20010810X01654. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.