Individually Owned: 150,657
Corporate Owned: 137,281
Maple Lake Airport
Aircraft Accident/Incident Report
Maple Lake, Minnesota 55358
Thursday, May 21, 1998 18:17 CDT
NTSB Narrative Summary Released at Completion of Accident
Witnesses reported the engine sounded normal during the takeoff roll and that the airplane rotated normally. Witnesses reported the airplane climbed to about 100 to 200 feet when the engine revved up 'really high' to what sounded like 1,000 RPM's higher than normal takeoff power. A witness reported the airplane went into a 60 degree left bank, and then the airplane turned right into an 80 degrees nose dive. The airplane went straight down and did not spin. The stall speed of the airplane was 50 mph. The airspeed indicator was found with the needle stuck at approximately 41 mph. The engine and flight controls exhibited continuity and no pre-impact anomalies were revealed. The engine was modified for airplane use by utilizing a propeller belt reduction drive to reduce the engine RPM's to approximately 2,500 propeller RPM's. The two 30 mm wide reduction drive belts were not found at the impact site. Searches for the drive belts were made of the surrounding area on two separate occasions but without success.
NTSB Probable Cause Narrative
the pilot inadvertently stalled the airplane. A factor was the failed reduction drive belts.
Event Information
| Type of Event | Accident |
| Event Date | 5/21/1998 |
| Event Day of the Week | Thursday |
| Time of Event | 1817 |
| Event Time Zone | Central Daylight Time |
| Event City | MAPLE LAKE |
| Event State | MINNESOTA |
| Event Country | -- |
| Zipcode of the event site | 55358 |
| Event Date Year | 1998 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | MAPLE LAKE AIRPORT |
| Event Location Nearest Airport ID | Y33 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 1028 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1753 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 350 |
| Weather Observation Facility ID | STC |
| Elevation of weather observation facility | 1648 |
| Distance of event from weather observation facility (units?) | 18 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 21 |
| Dew Point at event time (in degress fahrenheit) | 3 |
| Wind Direction (degrees magnetic) | 60 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | 2 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1399 |
| NTSB Notification Source | -- |
| NTSB Notification Date | May 22 1998 12:00AM |
| NTSB Notification Time | 750 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Feb 23 2001 1:54PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N68474 |
| NTSB Number | CHI98LA170 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | KREATZ |
| Aircraft Model | GENESIS |
| Aircraft Series Identifier | GENESIS |
| Aircraft Serial Number | 037 |
| Certified Max Gross Weight | 1400 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | Yes |
| 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 | -- |
| Airframe hours since last inspection | 19 |
| Airframe Hours | 19 |
| ELT Installed | No |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | GEORGE A. KREATZ |
| Aircraft Owner Street Address | 16010 14TH AVE. N. |
| Aircraft Owner City | PLYMOUTH |
| Aircraft Owner State | MN |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 55447 |
| Operator is an individual? | -- |
| 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? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| 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) | Personal |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | Y33 |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1816 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Feb 23 2001 1:54PM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 10 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |