User's Manual

TY91/TY92 VHF Radio Installation Manual 11 April 2012
00839-00 Issue AA
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Trig Avionics Limited 39
9. Continued Airworthiness
Other than for periodic functional checks required by the regulations, the
TY91/TY92 VHF radio has been designed and manufactured to allow “on
condition maintenance”. This means that there are no periodic service
requirements necessary to maintain continued airworthiness, and no
maintenance is required until the equipment does not properly perform its
intended function. When service is required, a complete performance test
should be accomplished following any repair action. Repairs should only be
carried out in accordance with Trig Avionics Limited service procedures.