Beech F33A N3133W accident near San Diego, California

Probable cause

A loss of engine power due to fuel starvation as a result of the pilot's improper use of the mixture control.

NTSB analysis

The pilot stated that she had leaned the mixture during cruise flight; however, she did not adjust the mixture setting prior to initiating an approach to landing. While on final approach to the runway, the engine lost power. The pilot advanced the throttle with no change in engine performance. The airplane landed hard in an open area just short of the approach end of the runway and impacted a ditch during the landing roll. Examination of the airplane by a Federal Aviation Administration inspector revealed that the firewall sustained substantial damage. The engine remained attached to the airframe by all its mounts. The engine was started and ran normally through various power settings. No anomalies were noted with the engine or airframe. The Pilot's Operating Handbook normal procedures state to enrich the mixture as required for descent and before landing.

Text from the NTSB. Open the NTSB docket for LAX08LA088 for the full record.