Summary
On July 01, 2004, a Henes Zenair CH 701 (N98EH) was involved in an incident near Mansfield, OH. 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 pilot's failure to maintain directional control during a precautionary landing. A factor was the pilot's unapproved maintenance modification resulting in the loss of oil pressure and partial loss of engine power.
On July 1, 2004, about 1430 eastern daylight time, an amateur built Zenair CH 701, N98EH, was substantially damaged during a precautionary landing, following a partial loss of engine power after takeoff from Mansfield Lahm Regional Airport (MFD), Mansfield, Ohio. The certificated private pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local personal flight conducted under 14 CFR Part 91.
The pilot reported that he tookoff from runway 23 at MFD. Over the departure end of the runway, the pilot noted that the engine power was 100 rpm lower than expected, and the oil pressure decreased to 0. The pilot initiated a left turn for a precautionary landing on runway 5, a 5,795-foot-long, 150-foot wide, asphalt runway.
This incident is documented in NTSB report NYC04CA150. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N98EH.
Accident Details
Probable Cause and Findings
The pilot's failure to maintain directional control during a precautionary landing. A factor was the pilot's unapproved maintenance modification resulting in the loss of oil pressure and partial loss of engine power.
Aircraft Information
Registered Owner (Historical)
Analysis
On July 1, 2004, about 1430 eastern daylight time, an amateur built Zenair CH 701, N98EH, was substantially damaged during a precautionary landing, following a partial loss of engine power after takeoff from Mansfield Lahm Regional Airport (MFD), Mansfield, Ohio. The certificated private pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local personal flight conducted under 14 CFR Part 91.
The pilot reported that he tookoff from runway 23 at MFD. Over the departure end of the runway, the pilot noted that the engine power was 100 rpm lower than expected, and the oil pressure decreased to 0. The pilot initiated a left turn for a precautionary landing on runway 5, a 5,795-foot-long, 150-foot wide, asphalt runway. The engine continued to lose power during the approach to the runway, but did not experience a total loss of power. The airplane was not aligned with the centerline as it touched down on runway 5, and traveled off the left side. The airplane subsequently struck runway lights and came to rest inverted in a grass area off the left side of the runway.
A Federal Aviation Administration inspector examined the airplane. The examination revealed that the pilot had recently installed a homemade oil cooler adapter on the Continental C-75 engine.
Data Source
Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# NYC04CA150