Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Iliamna, Alaska 99606
Sunday, September 14, 2003 17:00 AKD
NTSB Narrative Summary Released at Completion of Accident
The airline transport certificated pilot was departing a small lake in a float-equipped airplane to reposition onto a larger lake in the area. He said that as he applied takeoff power, the left wing was immediately lifted by gusty winds. He applied left aileron, but the airplane continued to roll to the right. The right wing contacted the water and the airplane either nosed, or rolled, over. The pilot indicated that gusty wind conditions from the north may have been affected by a hill adjacent to the lake. The pilot said that prior to takeoff from the remote lake, he utilized a satellite phone to obtain weather information for his planned destination, and also for the area of departure. The pilot said he learned that the destination had gusty winds and turbulence. The closest weather reporting station, located 30 miles away, had winds of 13 knots from the north.
NTSB Probable Cause Narrative
The pilot's failure to maintain control of the airplane during the takeoff run, which resulted in the airplane nosing over in the water. Factors contributing to the accident were wind gusts, and the pilot's inadequate evaluation of the wind conditions.
Event Information
| Type of Event | Accident |
| Event Date | 9/14/2003 |
| Event Day of the Week | Sunday |
| Time of Event | 1700 |
| Event Time Zone | -- |
| Event City | Iliamna |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99606 |
| Event Date Year | 2003 |
| Event Date Month | 9 |
| MidAir Collision Indicator | -- |
| On Ground Collision occurred ? | -- |
| Event Location Latitude | 593636N |
| Event Location Longitude | 1555248W |
| 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 | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1653 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | 45 |
| Weather Observation Facility ID | PAIL |
| Elevation of weather observation facility | 186 |
| Distance of event from weather observation facility (units?) | 30 |
| Time Zone of the weather observation | ADT |
| 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) | 13 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 360 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 13 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.23 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | Minor |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | 1 |
| Injury Total None | 1 |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 15259 |
| NTSB Notification Source | FAA REGIONAL OPERATIONS CENTER |
| NTSB Notification Date | Sep 14 2003 12:00AM |
| NTSB Notification Time | 2050 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Apr 28 2004 3:34PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | FAA-AL-ANC FSDO 03 |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N3795Z |
| NTSB Number | ANC03LA115 |
| 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 | Piper |
| Aircraft Model | PA-18 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 18-7486 |
| 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 | 100 Hour |
| Date of Last Inspection | Jun 1 2003 12:00AM |
| Airframe hours since last inspection | 36 |
| Airframe Hours | 7056 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | John C. Dieffenderfer |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Eagle River |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99577 |
| 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) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | -- |
| Departure City | Iliamna |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 1700 |
| Departure Time Zone | ADT |
| 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 | Takeoff - roll/run |
| Report sent to ICAO? | No |
| Evacuation occurred | -- |
| Date of most recent change to record | Feb 27 2004 2:43PM |
| User who most recently changed record | PETL |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |