Casualties unknown

Weather and Weight Issues Precede Departure Accident Near Airport (N3364C)

Chino, CA, US

On January 19, 1999, a Beech F35 (registration N3364C) was involved in an aviation accident near Chino, CA. Investigators recorded the probable cause as: The pilot's intentional flight into known instrument meteorological conditions in hilly terrain and his failure to maintain aircraft control due to spatial disorientation. 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 departure accident occurred about 3 miles west of an airport. The airplane was overweight and the pilot lacked an instrument rating. Weather conditions included low ceilings and reduced visibility. No preflight weather briefing was obtained.

Accident Synopsis

A departure accident occurred approximately 3 miles west of the departure airport. The airplane was climbing after takeoff when it completed a 360-degree turn, reached 2,500 feet msl, then entered a tighter turn with a 500-foot altitude loss. It completed another turn while descending to impact. Recorded radar data showed the airplane from 500 feet agl to the accident site at 1,112 feet msl, about 600 feet above the airport elevation.

Weather Conditions

The departure was planned for about 0430. No record was found that the pilot obtained a preflight weather briefing through an FAA or NWS source. Surrounding airports reported cloud coverage between 700 and 1,000 feet above ground level, with visibility 3 miles or less. A terminal forecast for the area predicted visibility of 3 miles in mist, temporarily 1 mile in mist, between 0400 and 0600. An AIRMET was in effect for ceilings below 1,000 feet and visibility 3 miles in fog and mist for the departure area. The AIRMET also noted occasional ceilings below 1,000 feet and visibility less than 3 miles in fog and precipitation for portions of the en route phase and at the destination. Mountain obscuration in clouds and precipitation was also forecasted.

Terrain and Aircraft Information

The departure airport was surrounded by hilly terrain with tops 1,000 to 3,000 feet above the airport elevation. The most conservative weight and balance computation placed the airplane 241.2 pounds over maximum allowable gross weight, with a center of gravity location 2.57 inches aft of the rear limit. No discrepancies were found with the airplane or engine upon inspection. The pilot did not possess an instrument rating.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001204X00068. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.