Airworthiness directives › 2017-22-14
AD 2017-22-14 Airworthiness Directives; Rockwell Collins, Inc. Traffic Surveillance System Processing Unit
Applicability*9
Rockwell Collins, Inc. TSSA-4100 Field Loadable Software (FLS) Rockwell Collins part numbers (RCPNs) 810-0052-002, -003, -010, -011, -012, -100, or -101 found on TSS-4100 Traffic Surveillance System Processing Units, (RCPN) 822-2132-001 installed on airplanes. (1) The FLS RCPNs 810-0052-002, -003, -010, -011, -012, -100, or -101 found on TSS-4100 Traffic Surveillance System Processing Units are known to be installed on but not limited to the airplanes listed in paragraphs (c)(1)(i) through (14) of this AD and are certificated in any category. (i) Bombardier Challenger 300 (BD-100-1A10) (ii) Bombardier Challenger 350 (BD-100-1A10) (iii) Bombardier Challenger 650 (CL-600-2B16) (iv) Bombardier CRJ-700 (CL-600-2C10) (v) Bombardier CRJ-900 (CL-600-2D24) (vi) Bombardier CRJ-1000 (CL-600-2E25) (vii) Bombardier CS100 (BD-500-1A10) (viii) Bombardier CS300 (BD-500-1A11) (ix) Bombardier Global 5000 equipped with Global Vision Flight Deck (BD-700-1A11) (x) Bombardier Global 6000 (BD-700-1A10) (xi) Cessna Citation CJ4 (525C) (xii) Embraer Legacy (EMB-550) (xiii) Embraer Legacy 450 (EMB-545) (xiv) Gulfstream G280 (2) Earlier revision levels of the Rockwell Collins, Inc. service information and service information issued by airplane manufacturers before the effective date of this AD may have specified the installation of FLS with different FAA-approved part numbers than the part numbers listed in paragraph (c) of this AD. If, before December 20, 2017 (the effective date of this AD), a part number that is different than the TSSA-4100 RCPNs listed in paragraph (c) of this AD is installed on the airplane, this AD does not apply to that airplane.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Within the next 12 months after December 20, 2017 (the effective date of this AD) or within the next 750 hours time-in-service after December 20, 2017 (the effective date of this AD), whichever occurs first, upgrade the TSSA-4100 FLS to RCPN 810-0052-013 or 810-0052-102, as applicable, following Rockwell Collins Service Information Letter, TSSA-4100-SIL-10-1, Revision No. 9, dated March 31, 2017; or Rockwell Collins Service Information Letter TSSA-4100-SIL-10-1, Revision No. 10, dated July 10, 2017.
Unsafe condition
This AD was prompted by five instances of air traffic control observing coasting (extrapolated stale data) automatic dependent surveillance-broadcast data (ADS-B position/velocity data) on a related Rockwell Collins, Inc. platform that shares a common architecture with the TSS-4100 Traffic Surveillance System Processing Units. We are issuing this AD to prevent erroneous extrapolation of position/velocity and altitude data that could result in misleading position and/or altitude being reported by the airplane and possibly lead to mid-air collision.
Affected ADs
None.
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