TT31 Transponder Installation Manual 1 February 2010
00455-00 Issue AJ
______________________
9. Continued Airworthiness
Other than for periodic functional checks required by the regulations, the TT31 Mode S transponder 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.
Page 26 Trig Avionics Limited