Sandel
Avionics
SN3308 Navigation Display
Installation Manual
90106-IM-G(4) Installation Manual W SIG.doc
Appendix-E Page 3
11.1.1 Introduction
The following ground test procedures are to be performed after the SN3308 has
been properly configured in the “Post-Installation Procedures”, but prior to
performing flight test procedures. Successful completion of both the Ground Test
and Flight Test procedures is necessary to support the claim that the SN3308, as
installed, performs its intended function and is compatible with all aircraft systems.
The ground test procedures contained herein will include testing of interfaces to
other systems. Therefore, this ground test must be conducted in conjunction with,
or subsequent to ground testing of other systems.
The following external system interfaces will be tested:
- Heading input from directional gyro
- Compass input from fluxgate sensor (if installed)
- Navigation data inputs: VOR/ILS/GS, ADF, DME, GPS and FMS (if installed)
- Annunciator inputs from a marker beacon receiver (if installed)
- Annunciator inputs from a GPS receiver (if installed)
- Lightning-strike inputs from a WX-500 Stormscope® sensor (if installed)
- Remote nav source switching relays and/or indicators (if installed)
11.1.2 Test Procedures and Results
11.1.3 Physical Installation
Verify that the SN3308 clamp tray has been properly installed in accordance with the
manufacturer’s instructions, that any external switches affecting SN3308 operation have been
clearly labeled, and that a trip-free resettable circuit breaker labeled “EHSI” is clearly visible.
Ensure that cooling air intake is not obstructed.
Completed _______ Comment __________________________________
11.1.4 Wiring Verification and Initial Power-Up
Perform a 100% continuity check of all aircraft wiring to verify in accordance with installation
wiring diagrams.
Completed _______ Comment __________________________________
