Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Talkeetna River, Alaska 99567
Tuesady, September 7, 1993 16:00 AKD
NTSB Narrative Summary Released at Completion of Accident
PILOT IN COMMAND ATTEMPTED TAKEOFF WITH OVERLOADED AIRPLANE FROM ROUGH RIVERBAR STRIP AND COLLIDED WITH TERRAIN. AIRPLANE EQUIPPED WITH MANUFACTURER'S AFTER-MARKET 32 GALLON BELLY TANK WHICH ALLOWED AIRCRAFT GROSS WEIGHT TO EXCEED MAXIMUM CERTIFICATED WEIGHT ANYTIME 10 GALLONS OF FUEL AS WELL AS MINIMUM CREW WERE ABOARD. THE AIRCRAFT WOULD ALWAYS BE OVER GROSS WEIGHT WHENEVER THE REAR SEAT WAS OCCUPIED. NO CAUTION BY MANUFACTURER OR FAA REGARDING LIMITATIONS ON USE OF PASSENGER SEAT WITH BELLY FUEL. AIRCRAFT WAS CERTIFIED AS 2 PLACE AIRPLANE BY FAA ALTHOUGH ADDITION OF ANY BELLY FUEL WOULD EXCEED MAXIMUM TAKEOFF WEIGHT WITH BOTH SEATS OCCUPIED.
NTSB Probable Cause Narrative
THE PILOT IN COMMAND'S IMPROPER PREFLIGHT PLANNING. FACTORS IN THE ACCIDENT WERE: THE ROUGH/UNEVEN TAKEOFF LOCATION, THE EXCESS WEIGHT OF THE AIRPLANE, THE INADEQUATE DESIGN OF THE ADD-ON TANK BY THE MANUFACTURER AFFECTING THE WEIGHT AND BALANCE, AND THE INADEQUATE CERTIFICATION/APPROVAL OF THE TANK BY THE FAA.
Event Information
| Type of Event | Accident |
| Event Date | 9/7/1993 |
| Event Day of the Week | Tuesday |
| Time of Event | 1600 |
| Event Time Zone | -- |
| Event City | TALKEETNA RIVER |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99567 |
| 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 | |
| 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 | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Pilot |
| Time of the weather observation | 0 |
| 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 | 3000 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Overcast |
| 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) | 4 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | Light and Variable |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Serious |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | 2 |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 2053 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Sep 8 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 | N64AT |
| NTSB Number | ANC93FA172 |
| 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 | Ground |
| Aircraft Explosion | Unknown |
| Aircraft Manufacturer's Full Name | INTERSTATE |
| Aircraft Model | S-1B2 ARCTIC TERN |
| Aircraft Series Identifier | S-1B2 ARCT |
| Aircraft Serial Number | 1015 |
| Certified Max Gross Weight | 1650 |
| 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 | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | GARY L. FRANKLYN |
| Aircraft Owner Street Address | 951 JOHAM CIRCLE |
| Aircraft Owner City | ANCHORAGE |
| Aircraft Owner State | AK |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 99515 |
| Operator is an individual? | -- |
| Operator Name | FRANKLIN, GARY L. |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 951 JOHAM CIRCLE |
| Operator City | ANCHORAGE |
| Operator State | AK |
| Operator Country | |
| Operator Zip code | 99515 |
| 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 | Yes |
| Departure Airport Code | |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1600 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | ANC |
| Destination City | ANCHORAGE |
| Destination State | AK |
| Destination Country | |
| Specific Phase of Flight | Takeoff |
| 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 | 0 |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |