Individually Owned: 150,657
Corporate Owned: 137,281
Clermont County Airport
Aircraft Accident/Incident Report
Batavia, Ohio 45103
Sunday, October 28, 2001 15:30 EST
NTSB Narrative Summary Released at Completion of Accident
After takeoff, about 300 feet above the ground, the engine began to run rough. The private pilot initially attempted to turn back toward the airport, but the flight instructor took control of the airplane, performed a forced landing, and struck trees. Subsequent examination of the engine by an FAA inspector revealed valve guide wear and coking of the valve stem on the number four cylinder exhaust valve. When the inspector repositioned the valve, it stuck in the open and closed positions. Review of the airplane logbooks revealed that the engine had accumulated 1,975.49 hours of operation since it was originally manufactured, approximately 33 years prior the accident. During that time frame, the engine was never overhauled. Additionally, the engine had accumulated 23 hours of operation since the last annual inspection, which was performed about 10 months prior to the accident. A service bulletin and service instruction from the engine manufacturer recommended that the valve guides be inspected at 400-hour intervals, and that the engine be overhauled in the 12th year if it did not accumulate the recommended hourly period of time between overhauls, which was 2,000 hours.
NTSB Probable Cause Narrative
Malfunction of an exhaust valve. A factor was the pilot/owner's failure to comply with the engine manufacturer's service instructions.
Event Information
| Type of Event | Accident |
| Event Date | 10/28/2001 |
| Event Day of the Week | Sunday |
| Time of Event | 1530 |
| Event Time Zone | Eastern Standard Time |
| Event City | Batavia |
| Event State | OHIO |
| Event Country | -- |
| Zipcode of the event site | 45103 |
| Event Date Year | 2001 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | Clermont County Airport |
| Event Location Nearest Airport ID | I69 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0.5 |
| Degrees magnetic from airport | 220 |
| Airport Elevation | 844 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1553 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 270 |
| Weather Observation Facility ID | LUK |
| Elevation of weather observation facility | 844 |
| Distance of event from weather observation facility (units?) | 10 |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 11 |
| Dew Point at event time (in degress fahrenheit) | -1 |
| Wind Direction (degrees magnetic) | 170 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.52 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 11840 |
| NTSB Notification Source | CINNCINNATI FSDO |
| NTSB Notification Date | Oct 28 2001 12:00AM |
| NTSB Notification Time | 1745 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jun 4 2002 9:52AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Cincinnati, OH |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5664L |
| NTSB Number | NYC02LA018 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | No |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | American Aviation Corp. (AAC) |
| Aircraft Model | AA-1 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | AA1-0064 |
| Certified Max Gross Weight | 1500 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Dec 14 2000 12:00AM |
| Airframe hours since last inspection | 23 |
| Airframe Hours | 1975 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Jason G. Groenemann |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Milford |
| Aircraft Owner State | OH |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 45150 |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | -- |
| Operator State | -- |
| Operator Country | -- |
| Operator Zip code | -- |
| Operator Code | -- |
| Owner has at least one certificate | None |
| Other Operator of large aircraft? | -- |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | I67 |
| Departure City | Batavia |
| Departure State | OH |
| Departure Country | USA |
| Departure Time | 1530 |
| Departure Time Zone | TW |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | I67 |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Takeoff - initial climb |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | May 8 2002 4:33PM |
| User who most recently changed record | PEAR |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 22 |
| Runway Length | 3568 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |