Casualties unknown

Aircraft Disappears into Canyon During VFR Flight (N9456H)

Yorba Linda, CA, US

On January 14, 1984, a Cessna 182R (registration N9456H) operated by Aviation Facilities Inc. was involved in an aviation accident near Yorba Linda, CA. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive; 2 related events involving the same aircraft type or operator are linked below.

Sourcesthe U.S. National Transportation Safety Board (NTSB) historical archivePrimary reportUpdated 2026-06-20Data APIEditorial standards

An aircraft departed a nearby airport on a visual flight rules cross-country trip, then was observed descending rapidly out of clouds before vanishing into a canyon.

What happened

The aircraft had departed an airport located approximately 18 miles away to conduct a VFR cross-country flight. During the journey, observers witnessed the aircraft descend in a near-vertical, high-speed trajectory while exiting cloud cover. The aircraft subsequently disappeared from view as it entered a canyon. A search party later located the wreckage on the floor of that canyon.

The investigation

Investigators were unable to establish any communication between the aircraft and any airborne or ground-based facilities after the moment of departure. No further mechanical examination details are provided in the source text.

Frequently asked questions

What happened in the 14 Jan 1984 Cessna 182R accident near Yorba Linda, CA?

An aircraft departed a nearby airport on a visual flight rules cross-country trip, then was observed descending rapidly out of clouds before vanishing into a canyon.

What aircraft was involved and where did it happen?

The accident on 14 Jan 1984 involved a Cessna 182R, registration N9456H, operated by Aviation Facilities Inc., at Yorba Linda, CA.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001214X38591. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.