Casualties unknown

1998-05-13: Bellanca 7GCBC (N11867) — Gorman, CA

Gorman, CA, US

On May 13, 1998, a Bellanca 7GCBC (registration N11867) was involved in an aviation accident near Gorman, CA. Investigators recorded the probable cause as: The pilot's inability to maintain aircraft control following an engine malfunction caused by an inoperative right magneto. 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

Witnesses saw a plane flying low in mountains before it crashed into an upsloping hill. Investigation revealed an inoperative right magneto caused the accident.

What happened

Ground witnesses observed an aircraft navigating through mountainous terrain below the cloud layer. The plane was estimated to be flying between 100 and 200 feet above the ground while traveling in a northerly direction. Despite this low-altitude flight, the aircraft eventually impacted an upsloping hill. At the moment of impact, the aircraft was heading in a westerly direction.

The investigation

Upon reaching the site, investigators noted that the wreckage was confined to a single area with little or no forward movement, indicating a direct impact with the terrain. A mechanical examination of the engine revealed a critical failure: the right magneto was found to be inoperative. This component is essential for ignition, and its failure would significantly degrade engine performance or cause complete power loss.

Findings

The primary factor contributing to this accident was the engine malfunction due to the inoperative right magneto. The combination of mountainous terrain, low altitude, and mechanical failure left no margin for error, resulting in a controlled flight into terrain (CFIT) scenario.

Probable cause

The pilot's inability to maintain aircraft control following an engine malfunction caused by an inoperative right magneto.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X10125. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.