No fatalities

Unstable Approach Leads to Runway Bounces and Aircraft Damage

Palo Alto, CA, United States

On May 20, 2008, a Cessna 172N operated by West Valley Flying Club was involved in an aviation accident near Palo Alto, CA. No fatalities were reported. Investigators recorded the probable cause as: The pilot added power on short final due to an unstable approach, leading to hard bounces on touchdown and subsequent damage to the propeller, firewall, engine mount, and nose wheel. This summary draws on records from NTSB; 17 related events involving the same aircraft type or operator are linked below.

SourcesNTSBPrimary reportUpdated 2026-08-03Data APIEditorial standards

A pilot reported an unstable approach, adding power on short final due to being low and slow. The aircraft experienced hard bounces on touchdown, causing propeller, firewall, engine mount, and nose wheel damage.

Incident Overview and Pilot Report The pilot reported that the approach to landing was unstable. During the final phase of the approach, the pilot added power on short final because the aircraft was too low and slow. ## Runway Contact and Resulting Damage When the landing gear touched down, the aircraft began porpoising with several hard bounces down the runway. This sequence of events ultimately resulted in propeller strike damage, firewall damage, engine mount damage, and nose wheel damage. ## Operational Context The source does not specify the aircraft type, registration, date, operator, or location. The reported cause of the damage is directly linked to the unstable approach and the subsequent hard bounces during landing.

Probable cause

The pilot added power on short final due to an unstable approach, leading to hard bounces on touchdown and subsequent damage to the propeller, firewall, engine mount, and nose wheel.

Contributing factors

Pilot