Individually Owned: 150,657
Corporate Owned: 137,281
Flathead Lake Airport
Aircraft Accident/Incident Report
Lakeside, Montana 59922
Friday, August 26, 1988 17:00 MDT
NTSB Narrative Summary Released at Completion of Accident
THE PLT AND HIS PAX DEPARTED BZN AT 1500 MDT AND FLEW TO HUGHES BAY ON FLATHEAD LAKE, NEAR LAKESIDE, MT, ARRIVING AT APRX 1700. THE PLT SAID HE NOTICED A DIMINISHING WAVE PATTERN FROM THE SOUTHWEST AND A STRONG GUST SURFACE PATTERN FROM THE EAST. THERE WERE NO WHITECAPS BUT THE WATER WAS ROUGHER TOWARDS THE MIDDLE OF THE LAKE. HE ESTIMATED THE WINDS WERE FROM THE EAST AT 5 KTS. THE PLT DRAGGED THE INTENDED LANDING AREA AND DECIDED IT WAS SAFE TO LAND. PLT MADE STEP-LANDING. ACFT GRAZED FIRST WAVE AT 65 MPH, BOUNCED OFF SECOND WAVE, AND SETTLED ON THIRD WAVE. IT THEN SPUN 90 DEG TO THE RIGHT. THE PLT LATER DISCOVERED THE LEFT FLOAT COLLAPSED, THE RIGHT FLOAT CRUSHED, AND OTHER SUBSTANTIAL DAMAGE TO THE AFT FUSELAGE. THE PLT SUSPECTS HE STRUCK FLOATING DEBRIS IN THE LAKE. THE PILOT OPERATING HANDBOOK RECOMMENDS A FULL STALL LANDING IN HIGH WIND/WAVE CONDITIONS.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 8/26/1988 |
| Event Day of the Week | Friday |
| Time of Event | 1700 |
| Event Time Zone | Mountain Daylight Time |
| Event City | LAKESIDE |
| Event State | MONTANA |
| Event Country | -- |
| Zipcode of the event site | 59922 |
| Event Date Year | 1988 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | FLATHEAD LAKE |
| Event Location Nearest Airport ID | NONE |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 0 |
| Airport Elevation | 2892 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1550 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 332 |
| Weather Observation Facility ID | FCA |
| Elevation of weather observation facility | 2972 |
| Distance of event from weather observation facility (units?) | 21 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 9000 |
| 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) | 30 |
| Air Temperature at event time (in degrees celsius) | 23 |
| Dew Point at event time (in degress fahrenheit) | 7 |
| Wind Direction (degrees magnetic) | 40 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 22 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 4300 |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 584 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 30 1988 12:00AM |
| NTSB Notification Time | 940 |
| Fiche Number and/or location -used to find docket information | 36452 |
| Date of most recent change to record | Dec 13 2000 12:03PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N1299L |
| NTSB Number | DEN88LA194 |
| 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 | LAKE |
| Aircraft Model | LA-4-200 |
| Aircraft Series Identifier | LA-4-200 |
| Aircraft Serial Number | 726 |
| Certified Max Gross Weight | 2600 |
| 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 15 1988 12:00AM |
| Airframe hours since last inspection | 6 |
| Airframe Hours | 1210 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | COOK, LEW W. |
| Aircraft Owner Street Address | P.O. BOX 976 |
| Aircraft Owner City | BELGRADE |
| Aircraft Owner State | MT |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 59714 |
| Operator is an individual? | -- |
| Operator Name | COOK, LEW W. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | P. O. BOX 976 |
| Operator City | BELGRADE |
| Operator State | MT |
| Operator Country | |
| Operator Zip code | 59714 |
| 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 | BZN |
| Departure City | BELGRADE |
| Departure State | MT |
| Departure Country | |
| Departure Time | 1500 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | NONE |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:35AM |
| 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 | -- |