Individually Owned: 150,657
Corporate Owned: 137,281
Martha Lake Airport
Aircraft Accident/Incident Report
Alderwood Manor, Washington 98036
Saturday, June 10, 1989 15:37 PDT
NTSB Narrative Summary Released at Completion of Accident
AFTER MAKING A LOW PASS OVER THE AIRPORT, THE PILOT FLEW A VFR TRAFFIC PATTERN AT A LOW ALTITUDE. HE INITIATED A STEEP LEFT TURN TO FINAL APPROACH AT 100 FT ABOVE THE LAKE ABOUT 1 MILE FROM THE AIRPORT. THE AIRCRAFT ROLLED FURTHER LEFT, DESCENDED IN A NOSE LOW ATTITUDE & IMPACTED THE WATER.
NTSB Probable Cause Narrative
PILOT'S FAILURE TO MAINTAIN PROPER AIRSPEED. CONTRIBUTING FACTORS WERE THE PILOT'S POOR JUDGEMENT IN FLYING A TRAFFIC PATTERN AT TREE-TOP LEVEL AND A TAILWIND CONDITION DURING THE STEEP TURN TO FINAL.
Event Information
| Type of Event | Accident |
| Event Date | 6/10/1989 |
| Event Day of the Week | Saturday |
| Time of Event | 1537 |
| Event Time Zone | Pacific Daylight Time |
| Event City | ALDERWOOD MANOR |
| Event State | WASHINGTON |
| Event Country | -- |
| Zipcode of the event site | 98036 |
| Event Date Year | 1989 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | MARTHA LAKE |
| Event Location Nearest Airport ID | S13 |
| 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 | 210 |
| Airport Elevation | 500 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Unknown |
| Time of the weather observation | 1545 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 310 |
| Weather Observation Facility ID | PAE |
| Elevation of weather observation facility | 603 |
| Distance of event from weather observation facility (units?) | 3 |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 21000 |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 19 |
| Dew Point at event time (in degress fahrenheit) | 11 |
| Wind Direction (degrees magnetic) | 270 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 980 |
| 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 | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1746 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jun 10 1989 12:00AM |
| NTSB Notification Time | 1615 |
| Fiche Number and/or location -used to find docket information | 40766 |
| Date of most recent change to record | Dec 13 2000 12:47PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8020E |
| NTSB Number | SEA89FA103 |
| 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 | WHITTAKER |
| Aircraft Model | BUSHBY MUSTANG 1 |
| Aircraft Series Identifier | BUSHBY MUS |
| Aircraft Serial Number | 244 |
| Certified Max Gross Weight | 1500 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | Yes |
| Flight Crew Seats | -- |
| Cabin Crew Seats | -- |
| Passenger Seats | -- |
| Total number of seats on the aircraft | 1 |
| 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 | No |
| ELT Type | -- |
| Aircraft Owner Name | DAVID E. DEAN |
| Aircraft Owner Street Address | RT. 4, BOX 69 |
| Aircraft Owner City | SUMMERLAND KEY |
| Aircraft Owner State | FL |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 33042 |
| Operator is an individual? | -- |
| Operator Name | JOSE RAUL FRANCO |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 1991 SEQUOIA AVE |
| Operator City | PORT ORCHARD |
| Operator State | WA |
| Operator Country | |
| Operator Zip code | 98366 |
| 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 | OS8 |
| Departure City | PORT ORCHARD |
| Departure State | WA |
| Departure Country | |
| Departure Time | 1505 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Approach |
| 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 | 34 |
| Runway Length | 1700 |
| Runway Width | 40 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |