Casualties unknown

Cessna 172I Collides with Mountainous Terrain in Instrument Meteorological Conditions (N225EB)

Chino Hills, CA, US

On June 11, 1992, a Cessna 172I (registration N225EB) operated by Tomich, Luis A. was involved in an aviation accident near Chino Hills, CA. Investigators recorded the probable cause as: THE PILOT'S POOR WEATHER EVALUATION AND INFLIGHT DECISION TO CONTINUE FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS IN MOUNTAINOUS TERRAIN. 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 2026-07-04Data APIEditorial standards

A Cessna 172I crashed into mountainous terrain during IMC, sparking a fire that was difficult to locate due to low clouds and fog. The fire was extinguished by nightfall, and the wreckage was not identified until the next morning.

Accident Overview

A Cessna 172I collided with mountainous terrain while operating in instrument meteorological conditions. The accident sparked a fire in the area. Firefighters were initially unable to precisely locate the fire because low ceilings and fog obscured the mountaintops. A helicopter was dispatched to assist in locating the fire but had to turn back due to deteriorating weather. The fire was eventually extinguished as night fell. The cause of the fire—the airplane accident—was not discovered until daylight the following day.

Weather Conditions

Two weather observation facilities at local airports bracketing the area reported a 2,000 ft overcast ceiling. One station, located five miles away at an elevation of 650 ft MSL, and another, 14 miles away at an elevation of 96 ft MSL, both provided these reports. The accident site elevation was approximately 1,485 ft MSL. The obscuring low ceilings and fog hampered response efforts.

Response Efforts

Firefighters on the ground faced challenges due to the low cloud ceiling and fog that hid the mountain peaks. A helicopter was dispatched to help pinpoint the fire location but was forced to turn around because of the adverse weather. The fire continued burning until it was finally extinguished during the evening. It was not until the following morning, when daylight improved visibility, that responders discovered the fire originated from the airplane wreckage.

Frequently asked questions

What happened in the 11 Jun 1992 Cessna 172I accident near Chino Hills, CA?

A Cessna 172I crashed into mountainous terrain during IMC, sparking a fire that was difficult to locate due to low clouds and fog. The fire was extinguished by nightfall, and the wreckage was not identified until the next morning.

What aircraft was involved and where did it happen?

The accident on 11 Jun 1992 involved a Cessna 172I, registration N225EB, operated by Tomich, Luis A., at Chino Hills, CA.

What was the probable cause of the accident?

THE PILOT'S POOR WEATHER EVALUATION AND INFLIGHT DECISION TO CONTINUE FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS IN MOUNTAINOUS TERRAIN.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X14886. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.