EASA AD US-2018-03-04
ROSEMOUNT AEROSPACE INC. - Pitot Probes - Inspection / Replacement
Summary
Federal Aviation Administration Airworthiness Directive 2018-03-04 is a final rule addressing Rosemount Aerospace Model 851AK pitot probes repaired by CSI Aerospace, Inc. between January 2013 and July 2014. This directive applies to airplanes equipped with these specific pitot probes and requires inspection and replacement to prevent incorrect airspeed indications during flight.
What Changed
This new airworthiness directive introduces mandatory inspections to identify the number of affected pitot probes installed on aircraft and requires replacement of those probes if more than one deficient unit is found. It clarifies the applicability period for affected probes and allows maintenance records review as an alternative to physical inspection for identifying affected probes.
Why It Matters
This directive is critical for aviation professionals to ensure flight safety by preventing erroneous airspeed readings that could lead to loss of control. Operators, maintenance organizations, and compliance teams must verify the status of pitot probes to maintain regulatory compliance and avoid potential flight hazards associated with faulty airspeed data.
What To Do
Operators must inspect their aircraft to determine the number of affected Rosemount Aerospace Model 851AK pitot probes repaired by CSI Aerospace between January 2013 and July 2014. If more than one affected probe is installed, they must be replaced within two months after the effective date of March 16, 2018. Maintenance records may be reviewed to identify affected probes instead of physical inspection when serial numbers and repair dates are documented.
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