ROCKWELL COLLINS - NOT ADOPTED - EASA DECISION ATTACHED - SEE EASA AD 2019-0179R1
- Published
- Effective
- Deadline
- Replaces
- 2019-12-09
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Affected operators must revise the airplane flight manual or supplement within 30 days of July 23, 2019, to restrict TCAS operation to TA Only mode and install the specified placard on the primary flight display. Additionally, they must complete the FDSA-6500 software upgrade within 12 months of the AD's effective date, April 29, 2021, following Rockwell Collins' service instructions.
Summary
The document titled "ROCKWELL COLLINS - NOT ADOPTED - EASA DECISION ATTACHED - SEE EASA AD 2019-0179R1" is a Federal Aviation Administration (FAA) Airworthiness Directive (AD) 2021-05-17. It applies to Rockwell Collins Flight Display System Application FDSA-6500 installed on various aircraft including Bombardier CL-600-2B16 (604 variant) and Textron Aviation models 525B, B200 series, B300 series, and C90GTi. The AD addresses a safety issue related to conflicting traffic collision avoidance system (TCAS) indications and alerts during resolution advisory scenarios.
What changed
This AD supersedes AD 2019-12-09 and retains its operating limitations on TCAS until a software upgrade is completed. It requires revising the airplane flight manual to prohibit TCAS operation in TA/RA mode, installing a placard on the primary flight display, and mandates upgrading the FDSA-6500 software within 12 months to resolve the unsafe condition.
Why it matters
This AD is critical for aviation safety as it prevents pilots from receiving conflicting TCAS information that could lead to incorrect maneuvering, potentially causing inadequate aircraft separation or mid-air collisions. Operators, maintenance organizations, and compliance teams must ensure adherence to these requirements to maintain safe flight operations and regulatory compliance.
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