No fatalities

Training Flight Ends in Aft Fuselage Damage After Landing Abort

Cornelius, OR, United States

On October 12, 2011, a CESSNA 172P operated by HILLSBORO AVIATION INC was involved in an aviation accident near Cornelius, OR. No fatalities were reported. Investigators recorded the probable cause as: The airplane’s encounter with an unseen hole or obstacle on the grass runway. 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 student pilot entered a slip during a simulated engine failure training flight. The aircraft hit an obstacle, bounced, and the instructor aborted the landing. Aft fuselage damage was found after returning to the departure airport.

Incident Overview and Flight Sequence A certified flight instructor (CFI) reported that during a training flight, he initiated a simulated engine power failure. The student pilot trimmed the airplane for a glide speed of 65 knots and maneuvered to a nearby grass runway. ## Approach and Landing During the final approach segment, with twenty degrees of flaps, the student pilot entered a slip. The CFI reported that shortly thereafter the airplane landed. During the landing roll, the airplane hit a “hole or obstacle” and bounced. The CFI applied power and aborted the landing. ## Damage and Mechanical Findings After returning to the departure airport, structural damage and skin deformation were discovered to the aft fuselage. The operator reported damage to longerons and an aft bulkhead. The operator reported no mechanical malfunctions or failures with the airplane.

Contributing factors

Causes

Awareness of conditionInstructor/check pilot

Other contributing factors

Effect on equipment