Jean Airport
Aircraft Accident/Incident Report

Jean, Nevada 89019
Friday, December 17, 2004 10:30 PST

NTSB Narrative Summary Released at Completion of Accident

The airplane's clamshell canopy door departed the airframe and struck the pilot's shoulder, while in a banking maneuver. As the pilot initiated a 30-degree turn to the left, the airplane's left canopy door suddenly became ajar, and he experienced difficulty flying the airplane. He attempted to regain control of the airplane, and about 2 to 3 seconds later, the door canopy separated completely from the airframe. After detaching, it struck the pilot's left shoulder, and then impacted the side of the fuselage; he landed at the airport without further incident. After egressing the cockpit, both pilots noted that the canopy latching mechanism was still in the locked position, affixed to the airframe. After several doctor's visits, the pilot was determined to have suffered tendon damage to his left shoulder. Technical examination of the airplane disclosed that the upper aft hinge of the canopy door failed first, followed by the forward hinge and a bolt attaching the bottom latch to the frame. The hinge had apparently undergone stress from the door remaining open during windy conditions or while the propeller was under power over an undetermined number of prior flights. The airplane's flight manual indicates in several locations that the door is to remain closed during such conditions.

NTSB Probable Cause Narrative

an in-flight separation of the left cockpit door due to the failure of the hinges from repeated exposure to wind or propeller slip stream forces while in the open position. The hinge failures were the ultimate result of the failure of persons unknown to follow the procedures/directives in the airplane flight manual.

Event Information

Type of Event Accident
Event Date 12/17/2004
Event Day of the Week Friday
Time of Event 1030
Event Time Zone Pacific Standard Time
Event City Jean
Event State NEVADA
Event Country --
Zipcode of the event site 89019
Event Date Year 2004
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 360148N
Event Location Longitude 1153558W
Event Location Airport Jean Airport
Event Location Nearest Airport ID 0L7
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 5
Degrees magnetic from airport 180
Airport Elevation 2832
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1056 Pacific Standard Time
Direction of event from weather observation facility (degrees) 45
Weather Observation Facility ID LAS
Elevation of weather observation facility 2127
Distance of event from weather observation facility (units?) 21
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Few
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) 12
Dew Point at event time (in degress fahrenheit) -6
Wind Direction (degrees magnetic) 90
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.5
Density Altitude (feet) 1763
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 19374
NTSB Notification Source FAA
NTSB Notification Date Dec 17 2004 12:00AM
NTSB Notification Time 1145
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 28 2006 1:55PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-LAS-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N285AM
NTSB Number LAX05LA083
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Aircraft Mfg & Dev. Co. (AMD)
Aircraft Model CH-2000
Aircraft Series Identifier --
Aircraft Serial Number 20-1046
Certified Max Gross Weight 1690
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed --
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Nimbus II LLC
Aircraft Owner Street Address 4510 N. Bent Tree Cir. W
Aircraft Owner City Litchfield Park
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 85340
Operator is an individual? No
Operator Name American Aviation
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2301 E. Sunset Rd
Operator City Jean
Operator State NV
Operator Country USA
Operator Zip code 89019
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code 0L7
Departure City Jean
Departure State NV
Departure Country USA
Departure Time 1000
Departure Time Zone MST
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 Maneuvering
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Dec 31 2005 1:35PM
User who most recently changed record COOS
Since inspection or accident --
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --