Addison - Addison
Flight / Schedule
Addison - Addison
Aircraft
Rockwell Aero Commander 520Registration
N4164B
MSN
520-69
Year of Manufacture
1953
Operator
James L. LeverenzDate
July 27, 1987 at 11:01 AM
Type
CRASHFlight Type
Training
Flight Phase
Landing (descent or approach)
Crash Site
Airport (less than 10 km from airport)
Crash Location
Addison Texas
Region
North America • United States of America
Coordinates
32.9601°, -96.8300°
Crash Cause
Technical failure
Narrative Report
On July 27, 1987 at 11:01 AM, Addison - Addison experienced a crash involving Rockwell Aero Commander 520, operated by James L. Leverenz, with the event recorded near Addison Texas.
The flight was categorized as training and the reported phase was landing (descent or approach) at a airport (less than 10 km from airport) crash site.
2 people were known to be on board, 0 fatalities were recorded, 2 survivors were identified or estimated. This corresponds to an estimated fatality rate of 0.0%.
Crew on board: 1, crew fatalities: 0, passengers on board: 1, passenger fatalities: 0, other fatalities: 0.
The listed crash cause is technical failure. Aircraft was destroyed when it struck power lines and the ground during a single engine go-around. Following a left engine shut down due to severe vibrations, the pilot overflew one airport to return to his home base. En route, he elected not to go to full power due to a 3 minutes limitation he did not want to exceed. The pilot overshot the runway while manually extending the nose gear and elected to attempt a right 270° turn to return to final while at 100-150 feet agl. Nose landing did not extend due to hydraulic pump being on left engine and no pressure. During the turn, the pilot lost control and the aircraft struck the wires. Investigation revealed that one of the blade pitch change links on the left prop had disconnected, allowing one blade to free float. The link pin assembly had backed out as a result of the safety screw backing out due to damaged and stripped threads and an improper length screw being installed. Props had 1/4' safety screws installed instead of 3/8'.
Aircraft reference details include registration N4164B, MSN 520-69, year of manufacture 1953.
Geospatial coordinates for this crash are approximately 32.9601°, -96.8300°.
Fatalities
Total
0
Crew
0
Passengers
0
Other
0
Crash Summary
Aircraft was destroyed when it struck power lines and the ground during a single engine go-around. Following a left engine shut down due to severe vibrations, the pilot overflew one airport to return to his home base. En route, he elected not to go to full power due to a 3 minutes limitation he did not want to exceed. The pilot overshot the runway while manually extending the nose gear and elected to attempt a right 270° turn to return to final while at 100-150 feet agl. Nose landing did not extend due to hydraulic pump being on left engine and no pressure. During the turn, the pilot lost control and the aircraft struck the wires. Investigation revealed that one of the blade pitch change links on the left prop had disconnected, allowing one blade to free float. The link pin assembly had backed out as a result of the safety screw backing out due to damaged and stripped threads and an improper length screw being installed. Props had 1/4' safety screws installed instead of 3/8'.
Cause: Technical failure
Occupants & Outcome
Crew On Board
1
Passengers On Board
1
Estimated Survivors
2
Fatality Rate
0.0%
Known people on board: 2
Operational Details
Schedule / Flight
Addison - Addison
Operator
James L. LeverenzFlight Type
Training
Flight Phase
Landing (descent or approach)
Crash Site
Airport (less than 10 km from airport)
Region / Country
North America • United States of America
Aircraft Details
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