Casualties unknown

Airplane Collides with Mountain During Descent in Overcast Conditions (N49565)

Cucamonga, CA, US

On May 29, 1990, a Cessna 182 (registration N49565) was involved in an aviation accident near Cucamonga, CA. Investigators recorded the probable cause as: THE PILOT'S CONTINUING VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS RESULTING IN COLLISION WITH TERRAIN. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 8 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-07-04Data APIEditorial standards

A pilot cruising at 6,500 feet encountered solid overcast clouds, executed a descending 180-degree turn to find an alternate airport, and the airplane struck mountainous terrain at approximately 6,000 feet MSL. Rescue crews took 10 hours to locate the wreckage due to poor weather.

Encounter with Overcast

The pilot was cruising at an altitude of 6,500 feet when he flew into a solid overcast cloud layer. In response, he initiated a descending 180-degree turn in an effort to locate an alternate airport.

Descent and Collision

During the maneuver, the airplane collided with mountainous terrain at an elevation of about 6,000 feet MSL. The collision occurred while the aircraft was in controlled flight during the turn.

Weather Briefing

Prior to departure, the pilot had obtained a weather briefing that indicated ceilings between 6,000 and 8,000 feet, with mountains obscured. This information was consistent with the conditions encountered en route.

Search and Rescue

Rescue personnel were unable to locate the wreckage for 10 hours following the accident. The delay was attributed to poor weather conditions at the site, which hampered visibility and access.

All Cessna 182 accidents →

Frequently asked questions

What happened in the 29 May 1990 Cessna 182 accident near Cucamonga, CA?

A pilot cruising at 6,500 feet encountered solid overcast clouds, executed a descending 180-degree turn to find an alternate airport, and the airplane struck mountainous terrain at approximately 6,000 feet MSL. Rescue crews took 10 hours to locate the wreckage due to poor weather.

What aircraft was involved and where did it happen?

The accident on 29 May 1990 involved a Cessna 182, registration N49565, at Cucamonga, CA.

What was the probable cause of the accident?

THE PILOT'S CONTINUING VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS RESULTING IN COLLISION WITH TERRAIN.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001212X23199. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.