Honeywell International Inc. 9PGTPL-100A 用户手册

Page 1001

1 Mar 2006

TPL-100A Processor / Part No. 940-0530-001

Use or disclosure of information on this page is subject to the restrictions in the proprietary notice of this document.

(1) Fault isolation is a process used to find the source of a TCAS failure at the assembly 

level (black box level) or aircraft wiring level.

(2) MILACAS-FR system failures are shown by failure annunciations on:

•

PPI Radar/TCAS displays

•

Dedicated traffic display unit cathode ray tube (CRT)

•

Electromechanical fail flag on the RA/VSI units

•

Failure indicator lamps on the front panels of the TCAS components.

(3) TCAS failures are detected, then the appropriate failure indicator is activated.  This is 

a result of full-time TCAS built-in-test equipment monitors and manually started TCAS 
functional self-test monitors. 

(4) Fault isolation is typically done on the ground. Failures are shown during 

post-installation or pre-flight tests.  Malfunctions are sometimes observed in flight.

All components of the MILACAS-FR system are tested before they are installed on the 
aircraft.  Most components of the system have automated tests. These tests are run on the 
bench to certify the equipment airworthiness and reliability.  These tests are contained in 
the component maintenance manuals (CMM) of the equipment which is selected to be 
installed in the system.

Once the equipment is installed on the aircraft, tests are run to make sure the system 
functions properly.  Table 1001 and Table 1002 show the indications which are seen on the 
maintenance computer display (MCD) when on-board system maintenance tests are run.