The "Non-Basic" WAAS Upgrade is defined very simply whereas any portion of the upgrade that falls outside of the realm as previously written. These areas can include but are not limited to any of the following:
400/500 series unit is outside the "Acceptable Viewing Area".
If this measurement exceeds 11.8 inches but is less than 13.41, VLOC/GPS annunciation is required. This can be accomplished via a GI106A indicator, an EHSI (as applicable), a PFD (as applicable), or other form of independent annunciation.
If this measurement exceeds 13.4 inches, VLOC/GPS, MSG, WPT, APR, TERM, INTEG annunciation is required. The VLOC/GPS can be accomplished via a GI106A indicator, an EHSI (as applicable), a PFD (as applicable), or other form of independent annunciation. The MSG, WPT, APR, TERM, INTEG annunciation can be accomplished via an EHSI (as applicable), a PFD (as applicable), or other form of independent annunciation.
Assuming a worse case scenario, if you need all stated annunciators, expect approximately $2995 in parts and labor to install the required annunciators.
Antenna coax needs to be changed - The installer who performed the original installation used the minimum allowable grade coax for your install (RG58). This type of coax is not in compliance with the STC therefore needs to be changed to RG142 or RG400 with a length between 6.5ft and 35ft.
If changing the Antenna and/or Antenna coax connector requires more than 1.5 hours to perform the work due to accessibility problems or lack of coax 'service-loop'.
Any system interfaced to the 400W/500W series unit that is NOT an APPROVED interface. Only items/systems listed in the 400W/500W series installation/upgrade manuals ARE APPROVED. These items will most likely require an FAA 'Field-Approval'.
If your aircraft is equipped with a Sandel SN3308 EHSI with older software.
If your aircraft is equipped with an STEC GPSS Roll Steering Adapter.
If your aircraft has a GPS400, GNC420(A), GPS500, or GPS500-TAWS.
Issues related to RFI (Radio Frequency Interference)
500-U Airport Road, Lititz, PA 17543 · 717-569-1953