Individually Owned: 150,657
Corporate Owned: 137,281
Walby Lake Seaplane Base Airport
Aircraft Accident/Incident Report
Palmer, Alaska 99654
Wednesday, August 21, 2013 13:56 AKD
NTSB Narrative Summary Released at Completion of Accident
During takeoff from a lake in a westerly direction, the airplane climbed to about 100 feet above ground level (agl) when the pilot retracted the flaps. Subsequently, the airplane rolled to the right and descended into trees and terrain. The pilot stated that he thought that he stalled the airplane on takeoff but that he did not recall hearing a stall warning horn. He added that he may have retracted the flap handle from the third notch to the first notch setting. Examination of the airplane revealed that flap handle was in the second notch, or 20-degree setting. The stall warning horn was removed and functioned normally; however, the investigation was unable to determine if the stall warning system was intact and calibrated due to impact damage to the wing and airframe. A review of weather data from a reporting facility about 4 miles east of the accident site revealed that about 3 minutes before the accident the wind was from 080 degrees at 8 knots, indicating that a slight tailwind would have existed at takeoff.
NTSB Probable Cause Narrative
The pilot’s failure to maintain adequate airspeed during initial climb after takeoff, which resulted in a subsequent aerodynamic stall. Contributing to the accident was the pilot’s decision to take off with a slight tailwind.
Event Information
| Type of Event | Accident |
| Event Date | 8/21/2013 |
| Event Day of the Week | Wednesday |
| Time of Event | 1356 |
| Event Time Zone | -- |
| Event City | Palmer |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99654 |
| Event Date Year | 2013 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 613659N |
| Event Location Longitude | 1491315W |
| Event Location Airport | Walby Lake Seaplane Base |
| Event Location Nearest Airport ID | AA85 |
| 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 | -- |
| Airport Elevation | 114 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1353 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | 90 |
| Weather Observation Facility ID | PAAQ |
| Elevation of weather observation facility | 242 |
| Distance of event from weather observation facility (units?) | 4 |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 6000 |
| Lowest Non-Ceiling Height | 6000 |
| Sky/Lowest/Cloud Conditions | Thin Overcast |
| Sky Condition for Lowest Ceiling | Overcast |
| 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) | 8 |
| Wind Direction (degrees magnetic) | 80 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.82 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR PAAQ 212153Z 08008KT 10SM OVC060 13/08 A2982 |
| 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 | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 32501 |
| NTSB Notification Source | FAA Operations Center |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Nov 15 2013 12:08PM |
| User who most recently changed record | cawj |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N7807K |
| NTSB Number | ANC13LA081 |
| Missing Aircraft Indicator | -- |
| 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 | CESSNA |
| Aircraft Model | 180J |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 18052741 |
| Certified Max Gross Weight | -- |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 1 2013 12:00AM |
| Airframe hours since last inspection | 2 |
| Airframe Hours | 4565 |
| ELT Installed | Yes |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | C91 |
| Aircraft Owner Name | MILLIGAN E DEAN |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | PALMER |
| Aircraft Owner State | AK |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 99645 |
| Operator is an individual? | No |
| Operator Name | Kenneth W Castner III |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Homer |
| Operator State | AK |
| Operator Country | USA |
| Operator Zip code | 99603 |
| 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 | Yes |
| Departure Airport Code | AA85 |
| Departure City | Palmer |
| Departure State | AK |
| Departure Country | USA |
| Departure Time | 1356 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | AA85 |
| Destination City | Palmer |
| Destination State | AK |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Nov 15 2013 12:08PM |
| User who most recently changed record | cawj |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 24 |
| Runway Length | 2500 |
| Runway Width | 200 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |