Summary
On July 16, 1996, a Cessna 172N (N738NZ) was involved in an incident near Daggett, CA. All 1 person aboard were uninjured. The aircraft sustained substantial damage.
The National Transportation Safety Board determined the probable cause of this incident to be: The fracture and separation of an exhaust valve head for undetermined reasons.
On July 16, 1996, at 0740 hours Pacific daylight time, a Cessna 172N, N738NZ, collided with a berm while attempting a forced landing on a desert road near Daggett, California. The forced landing was precipitated by a loss of power during cruise. The aircraft was operated by Barstow Aviation of Daggett, and was rented by the pilot for a local area personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft incurred substantial damage. The certificated private pilot, the sole occupant, was not injured. The flight originated at Daggett on the morning of the accident at 0700.
The pilot reported that he was in cruise flight when the engine suddenly ran rough and lost power.
This incident is documented in NTSB report LAX96LA274. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N738NZ.
Accident Details
Probable Cause and Findings
The fracture and separation of an exhaust valve head for undetermined reasons.
Aircraft Information
Registered Owner (Historical)
Analysis
On July 16, 1996, at 0740 hours Pacific daylight time, a Cessna 172N, N738NZ, collided with a berm while attempting a forced landing on a desert road near Daggett, California. The forced landing was precipitated by a loss of power during cruise. The aircraft was operated by Barstow Aviation of Daggett, and was rented by the pilot for a local area personal flight. Visual meteorological conditions prevailed at the time and no flight plan was filed. The aircraft incurred substantial damage. The certificated private pilot, the sole occupant, was not injured. The flight originated at Daggett on the morning of the accident at 0700.
The pilot reported that he was in cruise flight when the engine suddenly ran rough and lost power. The pilot attempted to land on a desert road; however, the road curved more than the aircraft could turn at the speed it was traveling after touchdown and the aircraft left the road and hit a berm.
During recovery operations an exhaust valve head fell out of the exhaust stack. Maintenance personnel reported that the fracture faces on the head and corresponding stem were obliterated due to peening. The engine was overhauled about 24 hours prior to the accident.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# LAX96LA274