Individually Owned: 150,657
Corporate Owned: 137,281
Sanona Creek Airstrip Airport
Aircraft Accident/Incident Report
Sanona Creek, Alaska 99588
Thursday, September 2, 1993 10:00 AKD
NTSB Narrative Summary Released at Completion of Accident
THE AIRPLANE WAS OBSERVED TO FLY OVER THE AIRSTRIP FROM THE SOUTHWEST AT 200-300 FT AGL, THEN BEGIN A TURN TO THE LEFT AS A BASE TURN TO THE WEST THRESHOLD OF THE AIRSTRIP. THE TURN CONTINUED INTO A STEEP SPIRAL TURN, AND THE AIRPLANE IMPACTED THE GROUND IN A NEAR-VERTICAL ANGLE. THE WIND WAS FROM THE WEST AT ABOUT 30 MPH. THE AIRPLANE WAS EQUIPPED WITH 32X15 BALLOON TUNDRA TIRES. THERE IS NO DATA RELATING TO AN EVALUATION OF THE AIRPLANE'S FLIGHT PERFORMANCE AND HANDLING ENVELOPE WITH THESE TIRES INSTALLED. AIRPLANE HAD NO REGISTRATION, FLIGHT MANUAL, WEIGHT AND BALANCE RECORD, NOR FORM 337'S FOR THE COMPLETE REBUILD AFTER THE AIRPLANE WAS REPORTED DESTROYED IN 1989. IN ADDITION, THERE WERE INSUFFICIENT STC OR FAA FIELD APPROVAL DOCUMENTS FOR MODIFICATIONS. THE AIRPLANE WAS AT LEAST 117 LBS OVER MAX GROSS WEIGHT. SHOULDER HARNESSES NOT INSTALLED.
NTSB Probable Cause Narrative
THE PILOT'S FAILURE TO MAINTAIN FLYING SPEED DURING A DOWNWIND TURN FOR LANDING. FACTORS CONTRIBUTING TO THE ACCIDENT WERE: THE OVERWEIGHT CONDITION OF THE AIRPLANE, AND FAILURE TO ASSURE THAT THE AIRPLANE COMPLIED WITH ALL APPLICABLE AIRWORTHINESS REGULATIONS.
Event Information
| Type of Event | Accident |
| Event Date | 9/2/1993 |
| Event Day of the Week | Thursday |
| Time of Event | 1000 |
| Event Time Zone | -- |
| Event City | SANONA CREEK |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99588 |
| Event Date Year | 1993 |
| Event Date Month | 9 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | SANONA CREEK AIRSTRIP |
| Event Location Nearest Airport ID | |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | 80 |
| Airport Elevation | 2900 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Witness |
| Time of the weather observation | 1000 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| 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) | 40 |
| Air Temperature at event time (in degrees celsius) | 10 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 260 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 15 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 30 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | 2800 |
| 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) | 1154 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Sep 2 1993 12:00AM |
| NTSB Notification Time | 1600 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 11 2000 1:37PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N4713A |
| NTSB Number | ANC93FA167 |
| 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 | PIPER |
| Aircraft Model | PA-18A-150 |
| Aircraft Series Identifier | PA-18A-150 |
| Aircraft Serial Number | 18-4931 |
| Certified Max Gross Weight | 1750 |
| 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 | Aug 5 1993 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 3200 |
| ELT Installed | Yes |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | NOT REGISTERED |
| Aircraft Owner Street Address | |
| Aircraft Owner City | |
| Aircraft Owner State | |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | |
| Operator is an individual? | -- |
| Operator Name | GARFIELD, WADE E. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 825 BRAIR, P. O. BOX 875121 |
| Operator City | WASILLA |
| Operator State | AK |
| Operator Country | |
| Operator Zip code | 99687 |
| 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) | Unknown |
| Second Pilot on Board | Unknown |
| Departure Point Same as Event | No |
| Departure Airport Code | |
| Departure City | GLACIER LODGE |
| Departure State | AK |
| Departure Country | |
| Departure Time | 900 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | |
| Destination City | EUREKA |
| Destination State | AK |
| Destination Country | |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Dec 11 2000 1:37PM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 27 |
| Runway Length | 800 |
| Runway Width | 30 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |