TY96/97 CS-STAN Installation Guide 10 November 2016
SUP/TY96/004 Issue 1.0
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Trig Avionics Limited Page 6
Other than for periodic functional checks required by the regulations, the TY96/97 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.
3.5 Acceptable Means of Compliance
The Installation must be carried out by an EASA Part M or EASA Part 145 organisation. The work
required includes an entry in the aircraft log book and the completion of a Form 123. Below is an
example of the Form 123, which can be used as a template;
3.6 Form 123
The original Form 123 remains with the legal or natural person responsible for the embodiment of the
SC/SR. The aircraft owner should retain a copy of this form. The aircraft owner should be provided
with copies of the documents referenced in box 6 marked with an asterisk '*'.