TCAS II Change 7.1 Compliance Solutions

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All STC paperwork

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FAA flight worthiness approval

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Processor - Look varies according to Manufacturer. Shown: ACAS II / TCAS II Processor with Change 7.1 (BendixKing).

Processor - Look varies according to Manufacturer.
Shown: ACAS II / TCAS II Processor with Change 7.1 (BendixKing).


Applicable TCAS Processors

 
 
ACSS-logo-250px-01.jpg


ACSS

RT 910
TCAS 2000

Logo_BendixKing (2011).JPG


BendixKing

TPU 67A

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Rockwell Collins

TTR 920
TTR 921
TTR 4000

 
 

Change 7.1 Background

Mandates

EASA MOPS Change 7.1 requires ACAS II version 7.1 be installed in all civil aircraft flying in European Union airspace, effective December 1, 2015.

about

ICAO concluded through investigation, that the TCAS logic in ACAS systems requires an upgrade to its collision avoidance logic.

This upgrade is known as TCAS II Version 7.1. It corrects the following safety concerns in processor logic:

  1. Adjust Vertical Speed RA
  2. RA monitoring compliance during coordinated encounters

Compliance Procedures

  1. Purchase an STC applicable to aircraft make/model and TCAS II processor
  2. Upgrade/Replace TCAS processor with version 7.1 software (authorized IAW STC)
  3. Amend both flight and maintenance manuals (AFM & AMM)(authorized IAW STC)
  4. Pilot training of TCAS version 7.1 changes once modifications are complete