Summary
We are adopting a new airworthiness directive (AD) for certain ACSS TCAS units installed on but not limited to various transport and small airplanes. This AD was prompted by reports of anomalies with TCAS units during a flight test over a high density airport. The TCAS units dropped several reduced surveillance aircraft tracks because of interference limiting. This AD requires upgrading software. We are issuing this AD to prevent TCAS units from dropping tracks, which could compromise separation of air traffic and lead to subsequent mid-air collisions.
Directive Details
AD Number
FAA-2010-1204
Document Number
2012-2560
Type
Rule
Publication Date
February 7, 2012
Effective Date
March 13, 2012
Affected Manufacturer
Aviation Communication & Surveillance Systems (ACSS) Traffic Alert and Collision Avoidance System (TCAS) Units
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2010-1204
Topics
Official Documents
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