AD/RAD/72 - Apollo SL30 VHF NAVCOM (Cth)

Radio Communication and Navigation Equipment

AIRWORTHINESS DIRECTIVE

For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.

AD/RAD/72 Apollo SL30 VHF NAVCOM 8/2001 TX

Applicability: UPS Aviation Technologies, Inc., Model Apollo SL30 very-high-frequency navigation/communication (VHF NAVCOM) unit having Part Number (P/N) 430- 6040-300 or 430-6040-301.

Requirement: 1. Determine what version of Digital Signal Processor (DSP) Software the Apollo SL30 VHF NAVCOM unit is using, in accordance with the following procedure:

Placing Unit In System Mode

Operation Summary (Refer to page 4 of operation manual)

Power On

Turn the SL30 on. Either turn the Power/Volume knob clockwise to turn the power on or, if installed, turn on the master switch that powers the radios. The SL30 will go through a short initialization routine and then briefly display the last VOR check date.

System Info (Refer to page 26 of operation manual)

System Info provides information about the Software versions and the Display Intensity.

1. Press SYS and turn the LARGE knob if necessary to the System Info page. Press ENT.