User's Manual Part 2

T
2
CAS / Part No. 9000000
SYSTEM DESCRIPTION AND INSTALLATION MANUAL
34-43-20
15 Feb 2003
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7--12
H. Scheduled maintenance program tasks to be added to the aircraft operator’s appropriate
aircraft maintenance program are as follows:
(1) Recommended periodic scheduled servicing tasks: None
required.
(2) Recommended periodic inspections are as follows:
• The TCAS directional antennas used with the T
2
CAS should be removed and the
underlying structure inspected for deterioration and corrosion during zonal
inspections usually performed in conjunction with heavy maintenance D checks.
• The ATC transponder(s) used with this system have test and inspections that are
required by FAR 91.413 to be completed every 24 months.
(3) Recommended periodic scheduled preventative maintenance tests (Tests to
determine system condition and/or latent failures):
• The ACSS T
2
CAS Computer Unit is designed to detect its own failures as well as
failures external to the computer unit. This BITE is continuously being executed
on a periodic basis. No formal periodic maintenance is required for the T
2
CAS
computer unit or the VSI/TRA display.
• The ACSS RCZ--852 Diversity Mode S Transponder is designed to detect its own
failures. This BITE is continuously being executed on a periodic basis. No formal
periodic maintenance is required for the transponder other than the 24 month
recertification test required by FAR 91.413.