Casualties unknown

1998-09-11: Wsk Pzl Mielec PZL M18B (N4450M) — Michael Kratz — Tappen, ND

Tappen, ND, US

On September 11, 1998, a Wsk Pzl Mielec PZL M18B (registration N4450M) operated by Michael Kratz was involved in an aviation accident near Tappen, ND. Investigators recorded the probable cause as: the pilot's improper preflight preparation resulting in the airplane exceeding the available airstrip distance during takeoff. A factor contributing to this accident was the swamp. 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 1781061362Data APIEditorial standards

A PZL M18B impacted a swamp off the end of a 3,000-foot airstrip after the pilot reported the airplane settling following a normal lift-off. Lowering flaps to 15 degrees did not help; the pilot could not initially locate the dump handle.

Accident Summary

The pilot of a PZL M18B reported that the airplane lifted off normally during takeoff but then began to settle back toward the ground. In an attempt to prevent the descent, the pilot lowered the flaps to 15 degrees. However, this action did not appear to have the desired effect.

Pilot Actions

The pilot then attempted to activate the dump handle but could not locate it immediately. By the time he found the handle, the airplane had impacted into a swamp just beyond the end of the 3,000-foot-long airstrip.

Wreckage Examination

A post-accident examination of the wreckage revealed no mechanical anomalies or pre-existing failures.

Performance Data

According to the Takeoff Distance Chart in the PZL M18B Aircraft Flight Manual, an airplane equipped with atomizers and configured with zero flaps, weighing 10,700 pounds, at an ambient temperature of 33 degrees Celsius, and with zero headwind, requires approximately 3,600 feet of takeoff distance.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X11018. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.