OPERATIONAL BEST PRACTICE -GROUND Title: Securing AircraftNo OBP-8

/ Your Company Name Here
Effective Date: March 27, 2009 / Revision: July 31, 2013
Purpose: / The NATA Member Company has adopted this OBP for the protection of owned and customer assets.
Policy Responsibility: / Chief Executive, General Manager, Line Supervisor (as applicable)
Policy: / Unless directed by the pilot in command of the aircraft, all aircraft that arrive on the ramp shall be properly secured to prevent uncontrolled movement. Rubber chocks shall be placed so that the chock does not rest on the tire. To ensure personal safety, employees shall not approach any aircraft until the aircraft has come to a complete stop. Before the placement of wheel chocks visual confirmation of a “safe to proceed” environment shall be determined by observing the jet engine exhaust wake and/or propellers have stopped. Under no circumstances shall an employee walk between the engines and the fuselage or within the propeller arc of a piston or turbo prop aircraft.
Procedure: /

Aircraft Less Than or Equal To 12,500 lbs. Gross Weight: (Single and Light Twins)

Wind Less Than or Equal to 10 MPH
Q  For wind conditions at or below 10 MPH and aircraft less than or equal to 12,500 lbs., the aircraft will be chocked at the nose wheel. The chocks shall be sized and constructed of an appropriate material to prevent the aircraft from rolling over the chock or pushing the chock along the surface.
Wind Greater Than 10 MPH / Less Than or Equal to 20 MPH
Q  In wind conditions/gusts greater than 10 MPH but less than 20 MPH and aircraft less than or equal to 12,500 lbs. gross weight, the aircraft will be chocked at both mains or tied down at both wing positions. Tail dragger aircraft shall be secured at both wing positions and tail wheel position.
Wind Greater than 20 MPH
Q  For wind conditions/gusts greater than 20 mph and aircraft less than or equal to 12,500 lbs. gross weight, the aircraft will be tied down at a minimum of three locations, each being the left and right wing and the tail section.

Aircraft Greater Than 12,500 lbs. Gross Weight: (Heavy Twins, Turbo Props, Jets)

Wind Less Than or Equal 10 MPH
Q  For wind conditions at or below 10 mph and aircraft over 12,500 lbs. gross weight, the aircraft will be chocked at the nose wheel position or either main wheel.
Wind Greater Than 10 MPH / Less Than or Equal to 20 MPH
Q  For wind conditions/gusts greater than 10 MPH and aircraft over 12,500 lbs. gross weight, the aircraft will be chocked at both main wheel positions. The pilot in command of the aircraft must be notified for further instructions.
Wind Greater than 20 MPH
Q  For wind conditions/gusts greater than 20 MPH and aircraft over 12,500 lbs. gross weight, the aircraft must be secured in accordance with the crew/pilots instructions and the aircraft manufacturers’ recommendations.
PPE / As applicable to Operational Best Practice adopted by Member Company.

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