Individually Owned: 150,657
Corporate Owned: 137,281
Heber City Airport
Aircraft Accident/Incident Report
Heber City, Utah 84032
Saturday, December 17, 1994 14:40 MST
NTSB Narrative Summary Released at Completion of Accident
DURING THE LANDING ROLL, THE AIRPLANE SUDDENLY VEERED TO THE RIGHT. THE PILOT TRIED TO CORRECT WITH LEFT RUDDER CONTROL; HOWEVER, THE AIRPLANE CONTINUED TO THE SIDE OF THE RUNWAY AND COLLIDED WITH A SNOW BANK. THE AIRPLANE TRAVELLED THROUGH THE SNOW FOR SEVERAL MORE FEET BEFORE NOSING OVER. INSPECTION OF THE TAIL WHEEL ASSEMBLY REVEALED THAT A CONNECTION CLIP WAS SPRUNG TO THE OPEN POSITION WHICH RESULTED IN THE DISCONNECTION OF THE LEFT SIDE CABLE/SPRING. THIS CABLE/SPRING CONNECTS THE LOWER RUDDER TAIL STEERING HORN ARM AND THE CONTROL ARM ON TOP OF THE TAIL WHEEL ASSEMBLY.
NTSB Probable Cause Narrative
AN OPEN CONNECTION CLIP. A FACTOR TO THE ACCIDENT WAS A LOCKED TAIL WHEEL ASSEMBLY.
Event Information
| Type of Event | Accident |
| Event Date | 12/17/1994 |
| Event Day of the Week | Saturday |
| Time of Event | 1440 |
| Event Time Zone | Mountain Standard Time |
| Event City | HEBER CITY |
| Event State | UTAH |
| Event Country | -- |
| Zipcode of the event site | 84032 |
| Event Date Year | 1994 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | HEBER CITY |
| Event Location Nearest Airport ID | 36U |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 5632 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1451 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 294 |
| Weather Observation Facility ID | SLC |
| Elevation of weather observation facility | 4227 |
| Distance of event from weather observation facility (units?) | 31 |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 25000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 15 |
| Air Temperature at event time (in degrees celsius) | 3 |
| Dew Point at event time (in degress fahrenheit) | -2 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1996 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Dec 17 1994 12:00AM |
| NTSB Notification Time | 1426 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 6 2000 12:47PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N101ZA |
| NTSB Number | SEA95LA030 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | MAULE |
| Aircraft Model | MX-7-235 |
| Aircraft Series Identifier | MX-7-235 |
| Aircraft Serial Number | 10074C |
| Certified Max Gross Weight | 2500 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Aug 3 1994 12:00AM |
| Airframe hours since last inspection | 24 |
| Airframe Hours | 330 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | ZIPPER AVIATION, INC. |
| Aircraft Owner Street Address | 3274 SOUTH 425 EAST |
| Aircraft Owner City | BOUNTIFUL |
| Aircraft Owner State | UT |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 84010 |
| 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 | No |
| Departure Point Same as Event | No |
| Departure Airport Code | SLC |
| Departure City | SALT LAKE CITY |
| Departure State | UT |
| Departure Country | |
| Departure Time | 1330 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | 36U |
| Destination City | |
| Destination State | UT |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 21 |
| Runway Length | 6900 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |