Casualties unknown

Cowling Door Opens During Climb, Resulting in Emergency Landing (N4915Q)

Clearbrook, MN, US

On September 14, 1988, a Cessna A188B (registration N4915Q) was involved in an aviation accident near Clearbrook, MN. Investigators recorded the probable cause as: The pilot's failure to properly secure the right cowling door before takeoff, which resulted in the door opening during initial climb and necessitating an emergency landing. 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 2026-06-10Data APIEditorial standards

A pilot failed to secure the right cowling door before takeoff, causing it to open during initial climb and forcing an emergency landing in a field with substantial damage.

What happened

During the initial climb phase of flight, the right cowling door detached from the aircraft. The pilot was unable to maintain altitude due to the situation and elected to perform an emergency landing in a nearby hay field. Upon touchdown, the aircraft encountered unsuitable terrain, resulting in substantial damage to the airframe.

The investigation

A post-accident inspection of the cowling latching mechanism revealed no mechanical anomalies or defects that would explain the door's release. The hardware appeared functional and intact upon examination by investigators.

Findings

The investigation determined that the primary factor in this incident was the pilot's failure to verify the security of the right cowling door prior to takeoff. This oversight allowed the panel to open during flight, leading to the loss of controlled climb performance and the subsequent forced landing.

Probable cause

The pilot's failure to properly secure the right cowling door before takeoff, which resulted in the door opening during initial climb and necessitating an emergency landing.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001213X26777. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.