Aircraft Accident/Incident Report

Antioch, California 94509
Sunday, December 26, 1999 13:50 PST

NTSB Narrative Summary Released at Completion of Accident

The pilot took off in the amphibious airplane from an asphalt runway, and then he flew to a lake. The pilot indicated that during the landing approach he forgot to retract the landing gear wheels. Upon touchdown in the water, the airplane nosed over.

NTSB Probable Cause Narrative

The pilot's inattention to the fact that he had failed to retract the landing gear wheels prior to performing a water landing.

Event Information

Type of Event Accident
Event Date 12/26/1999
Event Day of the Week Sunday
Time of Event 1350
Event Time Zone Pacific Standard Time
Event City ANTIOCH
Event State CALIFORNIA
Event Country --
Zipcode of the event site 94509
Event Date Year 1999
Event Date Month 12
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 Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1456 Pacific Standard Time
Direction of event from weather observation facility (degrees) 100
Weather Observation Facility ID SCK
Elevation of weather observation facility 30
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 3
Air Temperature at event time (in degrees celsius) 61
Dew Point at event time (in degress fahrenheit) 39
Wind Direction (degrees magnetic) 360
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 11168
NTSB Notification Source --
NTSB Notification Date Dec 26 1999 12:00AM
NTSB Notification Time 1620
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 14 2001 9:59AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8180Q
NTSB Number LAX00LA059
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 Quest II Walsh Ltd.
Aircraft Model AVENTURA II
Aircraft Series Identifier AVENTURA I
Aircraft Serial Number AP2A0052
Certified Max Gross Weight 850
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 27 1999 12:00AM
Airframe hours since last inspection 10
Airframe Hours 140
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name QUEST II WALSH LTD
Aircraft Owner Street Address
Aircraft Owner City WILMINGTON
Aircraft Owner State DE
Aircraft Owner Country
Aircraft Owner Zipcode 19802
Operator is an individual? --
Operator Name RAYMOND W. SHIPWAY
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address
Operator City SAN FRANCISCO
Operator State CA
Operator Country
Operator Zip code 94105
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 C83
Departure City BYRON
Departure State CA
Departure Country
Departure Time 1325
Departure Time Zone PST
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 Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 1 2001 4:45AM
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 --