Casualties unknown

Student Pilot Porpoises on Third Landing, Buckles Firewall (N5351L)

Livermore, CA, US

On July 12, 1994, a Cessna 152 (registration N5351L) operated by Ahart Aviation, Inc. was involved in an aviation accident near Livermore, CA. Investigators recorded the probable cause as: The student pilot's improper flare during the third landing, which resulted in a bounce and porpoise that buckled the firewall. 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 2026-06-19Data APIEditorial standards

A student pilot's third solo landing attempt ended in a hard bounce and porpoising that buckled the firewall of the aircraft.

What happened

The flight instructor for a student pilot reported endorsing the student for solo flight operations. After providing the endorsement, the instructor entered the control tower to observe the initial solo flight from an elevated vantage point. The student successfully completed two landing cycles without any reported issues or irregularities.

During the third landing attempt, the aircraft was flared at an excessive height above the runway surface. This improper technique caused the airplane to bounce upon initial contact with the pavement. The pilot failed to recover effectively, resulting in the aircraft porpoising along the runway length. This sequence of events placed significant stress on the airframe.

The investigation

Post-incident examination revealed structural damage to the forward fuselage area. The repeated vertical loads from the bounce and subsequent porpoising caused the firewall to buckle. No other mechanical failures were noted prior to the landing event.

Probable cause

The student pilot's improper flare during the third landing, which resulted in a bounce and porpoise that buckled the firewall.

All Cessna 152 accidents →

Frequently asked questions

What happened in the 12 Jul 1994 Cessna 152 accident near Livermore, CA?

A student pilot's third solo landing attempt ended in a hard bounce and porpoising that buckled the firewall of the aircraft.

What aircraft was involved and where did it happen?

The accident on 12 Jul 1994 involved a Cessna 152, registration N5351L, operated by Ahart Aviation, Inc., at Livermore, CA.

What was the probable cause of the accident?

The student pilot's improper flare during the third landing, which resulted in a bounce and porpoise that buckled the firewall.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001206X01785. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.